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&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt; &lt;span style=&quot;font-family: verdana, geneva;&quot;&gt;&lt;span style=&quot;font-size: medium;&quot; face=&quot;arial,helvetica,sans-serif&quot; size=&quot;3&quot;&gt;La fruta se pudre porque un gran número de reacciones químicas &lt;/span&gt;&lt;span style=&quot;font-size: medium;&quot; face=&quot;arial,helvetica,sans-serif&quot; size=&quot;3&quot;&gt;se están produciendo en su interior. El objetivo de la Cinética Química es el&lt;/span&gt;&lt;span style=&quot;font-size: medium;&quot; face=&quot;arial,helvetica,sans-serif&quot; size=&quot;3&quot;&gt; estudio de la velocidad con que se producen estas reacciones así como los pasos que intervienen en las mismas (mecanismo).&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;"></unicode>
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&lt;li style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;El estudio de la velocidad de cambio hacia el equilibrio (velocidad de reacción) en la reacción química.&lt;/span&gt;&lt;/li&gt;
&lt;li style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;La descripción de los factores que influyen en la velocidad de la reacción.&lt;/span&gt;&lt;/li&gt;
&lt;li style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Caracterización de la energía implicada en los procesos iniciales de la reacción química (energía de activación).&lt;/span&gt;&lt;/li&gt;
&lt;li style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Interpretación del comportamiento macroscópico del sistema en función de sus características microscópicas, expresadas como interacción entre moléculas.&lt;/span&gt;&lt;/li&gt;
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&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Respecto a las competencias básicas que el alumno/a debería adquirir al finalizar esta unidad didáctica caben destacar:&lt;/span&gt;&lt;/p&gt;
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&lt;li style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Las competencias sociais y cívicas.&lt;/span&gt;&lt;/li&gt;
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&lt;figure style=&quot;text-align: justify;&quot;&gt;&lt;figcaption&gt;Las TIC junto a los libros suponen una gran ayuda para tu aprendizaje&lt;/figcaption&gt;&lt;img style=&quot;margin: 10px auto; border: 3px solid black; display: block;&quot; src=&quot;resources/libreria_porto.jpg&quot; alt=&quot;En la imagen vemos una librería. Las TIC, junto a los libros serán tus compañeros de formación a lo largo de tu vida.&quot; title=&quot;Librería Lello e irmão en Oporto. La librería más bonita de Europa.&quot; height=&quot;269&quot; width=&quot;354&quot; /&gt;&lt;figcaption&gt;Librería Lello e irmão en Oporto. Fotografía: Enric Ripoll. Licencia: &lt;span class=&quot;license&quot;&gt;&lt;span class=&quot;sep&quot;&gt;(&lt;/span&gt;&lt;a href=&quot;http://creativecommons.org/licenses/?lang=es&quot; rel=&quot;license nofollow&quot; target=&quot;_blank&quot;&gt;CC BY-SA&lt;/a&gt;&lt;span class=&quot;sep&quot;&gt;)&lt;/span&gt;&lt;/span&gt; &lt;/figcaption&gt;&lt;/figure&gt;
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&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;A través del estudio de este tema y la posterior elaboración del proyecto descubrirás la cinética química, tan importante en la industria y en el desarrollo económico de un país. Con la resolución de los problemas y cuestiones planteados y con la visualización de las simulaciones encontrarás una forma amena y seria de aprender.&lt;/span&gt;&lt;/p&gt;
&lt;p align=&quot;justify&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Ya sabes que esta unidad didáctica está elaborada para fomentar en el alumno el aprendizaje activo, por tanto ten en cuenta las siguientes consideraciones:&lt;/span&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li&gt;
&lt;div align=&quot;justify&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Lee atentamente los textos y cuando no entiendas algo amplia la información mediante el uso de la red. Si aún así sigues sin comprender, pregúntale al profesor o tutor.&lt;/span&gt;&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div align=&quot;justify&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Resuelve los cuestionarios planteados y, si no obtienes más de un 80% de aciertos, repítelos después de revisar lo visto en la unidad.&lt;/span&gt;&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div align=&quot;justify&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Observa atentamente la simulaciones (no son un entretenimiento) en ellas deberás descubrir los conceptos que se pretende que entiendas para que adquieras las capacidades pertinentes.&lt;/span&gt;&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div align=&quot;justify&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;No pases a la siguiente sección sin haber comprendido las anteriores.&lt;/span&gt;&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div align=&quot;justify&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Usa los libros que estén a tu alcance, así como la RED para ampliar tu información.&lt;/span&gt;&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div align=&quot;justify&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Participa en el wiki preparado por el profesor.&lt;/span&gt;&lt;/div&gt;
&lt;/li&gt;
&lt;li&gt;
&lt;div align=&quot;justify&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Si estás en una plataforma educativa (Moodle, Claroline...) participa activamente en los foros y en los chats.&lt;/span&gt;&lt;/div&gt;
&lt;/li&gt;
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&lt;li style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Personas con dificultades visuales. Para facilitar la lectura a las personas con dificultades visuales se ha escogido una letra suficientemente grande (14 pt verdana) y un fondo claro para que el contraste con el texto sea grande.&lt;/span&gt;&lt;/li&gt;
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                <unicode value="Type in the feedback you want 
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                <string role="key" value="_name"></string>
                <unicode value="Feedback:"></unicode>
                <string role="key" value="anchor_names"></string>
                <list></list>
                <string role="key" value="anchors_linked_from_fields"></string>
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                <unicode content="true" value="&lt;p&gt;&lt;span style=&quot;font-family: 'comic sans ms', sans-serif; font-size: medium;&quot;&gt;Esperemos que al final de la unidad respondas correctamente esta cuestión.&lt;/span&gt;&lt;/p&gt;"></unicode>
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                <string role="key" value="htmlTag"></string>
                <string value="div"></string>
                <string role="key" value="images"></string>
                <instance class="exe.engine.galleryidevice.GalleryImages">
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                  <string role="key" value=".listitems"></string>
                  <list></list>
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                  <reference key="21"></reference>
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                   <unicode content="true" value="&lt;p&gt;&lt;span style=&quot;font-family: 'comic sans ms', sans-serif; font-size: medium;&quot;&gt;Se podría decir que la velocidad de una reacción es el cambio que sufren las cantidades de los productos y de los reactivos por unidad de tiempo en un proceso químico. &lt;/span&gt;&lt;/p&gt;"></unicode>
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                   <string role="key" value="htmlTag"></string>
                   <string value="div"></string>
                   <string role="key" value="images"></string>
                   <instance class="exe.engine.galleryidevice.GalleryImages">
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                     <string role="key" value=".listitems"></string>
                     <list></list>
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                     <reference key="22"></reference>
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                 <string role="key" value="exe.engine.field.SelectOptionField.persistenceVersion"></string>
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                 <string role="key" value="isCorrect"></string>
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                 <reference key="23"></reference>
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               <instance class="exe.engine.field.SelectOptionField">
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                 <string role="key" value="_name"></string>
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                 <instance class="exe.engine.field.TextAreaField" reference="24">
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                   <int value="40"></int>
                   <string role="key" value="_idevice"></string>
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                   <string role="key" value="_name"></string>
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                   <string role="key" value="anchor_names"></string>
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                   <string role="key" value="anchors_linked_from_fields"></string>
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                   <string role="key" value="content_w_resourcePaths"></string>
                   <unicode content="true" value="&lt;p&gt;&lt;span style=&quot;font-size: medium; font-family: 'comic sans ms', sans-serif;&quot;&gt;La velocidad de una reacción se hace más pequeña a medida que los reactivos se convierten en productos. &lt;/span&gt;&lt;/p&gt;"></unicode>
                   <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
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                   <string role="key" value="exe.engine.field.FieldWithResources.persistenceVersion"></string>
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                   <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
                   <int value="3"></int>
                   <string role="key" value="htmlTag"></string>
                   <string value="div"></string>
                   <string role="key" value="images"></string>
                   <instance class="exe.engine.galleryidevice.GalleryImages">
                    <dictionary>
                     <string role="key" value=".listitems"></string>
                     <list></list>
                     <string role="key" value="idevice"></string>
                     <reference key="24"></reference>
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                   <string role="key" value="intlinks_to_anchors"></string>
                   <dictionary></dictionary>
                   <string role="key" value="nextImageId"></string>
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                   <string role="key" value="parentNode"></string>
                   <reference key="18"></reference>
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                 <string role="key" value="exe.engine.field.SelectOptionField.persistenceVersion"></string>
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                 <string role="key" value="isCorrect"></string>
                 <bool value="0"></bool>
                 <string role="key" value="question"></string>
                 <reference key="23"></reference>
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               <instance class="exe.engine.field.SelectOptionField">
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                 <string role="key" value="_name"></string>
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                 <string role="key" value="answerTextArea"></string>
                 <instance class="exe.engine.field.TextAreaField" reference="25">
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                   <int value="42"></int>
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                   <unicode content="true" value="&lt;p&gt;&lt;span style=&quot;font-size: medium; font-family: 'comic sans ms', sans-serif;&quot;&gt;La velocidad con que un reactivo se transforma es siempre la misma que la de aparición de los productos &lt;/span&gt;&lt;/p&gt;"></unicode>
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                   <string role="key" value="exe.engine.field.FieldWithResources.persistenceVersion"></string>
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                   <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
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                   <string role="key" value="htmlTag"></string>
                   <string value="div"></string>
                   <string role="key" value="images"></string>
                   <instance class="exe.engine.galleryidevice.GalleryImages">
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                     <string role="key" value=".listitems"></string>
                     <list></list>
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                     <reference key="25"></reference>
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                 <string role="key" value="exe.engine.field.SelectOptionField.persistenceVersion"></string>
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            <instance class="exe.engine.field.SelectQuestionField" reference="29">
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              <string role="key" value="questionTextArea"></string>
              <instance class="exe.engine.field.TextAreaField" reference="26">
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                <string role="key" value="_id"></string>
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                <string role="key" value="_idevice"></string>
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                <unicode value="Question:"></unicode>
                <string role="key" value="anchor_names"></string>
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                <string value="block question"></string>
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                <string role="key" value="htmlTag"></string>
                <string value="div"></string>
                <string role="key" value="images"></string>
                <instance class="exe.engine.galleryidevice.GalleryImages">
                 <dictionary>
                  <string role="key" value=".listitems"></string>
                  <list></list>
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                  <reference key="26"></reference>
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              <string role="key" value="_correctAnswerInstruc"></string>
              <unicode value="Select as many correct answer 
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              <int value="43"></int>
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              <unicode value="Question"></unicode>
              <string role="key" value="_optionInstruc"></string>
              <unicode value="Enter the available choices here. 
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              <string role="key" value="_questionInstruc"></string>
              <unicode value="Enter the question stem. 
The question should be clear and unambiguous. Avoid negative premises as these 
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              <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
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              <string role="key" value="exe.engine.field.SelectQuestionField.persistenceVersion"></string>
              <int value="1"></int>
              <string role="key" value="feedbackInstruc"></string>
              <unicode value="Type in the feedback you want 
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              <string role="key" value="feedbackTextArea"></string>
              <instance class="exe.engine.field.TextAreaField" reference="27">
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                <string role="key" value="_id"></string>
                <int value="45"></int>
                <string role="key" value="_idevice"></string>
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                <unicode value="Type in the feedback you want 
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                <string role="key" value="anchor_names"></string>
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                <string role="key" value="content_w_resourcePaths"></string>
                <unicode content="true" value="&lt;p&gt;&lt;span style=&quot;font-size: medium; font-family: 'comic sans ms', sans-serif;&quot;&gt;Al final de esta unidad tienes que saber responder esta cuestión &lt;/span&gt;&lt;/p&gt;"></unicode>
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                <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
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                <string role="key" value="htmlTag"></string>
                <string value="div"></string>
                <string role="key" value="images"></string>
                <instance class="exe.engine.galleryidevice.GalleryImages">
                 <dictionary>
                  <string role="key" value=".listitems"></string>
                  <list></list>
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                  <reference key="27"></reference>
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                <string role="key" value="intlinks_to_anchors"></string>
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                 <string role="key" value="_id"></string>
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                 <string role="key" value="_name"></string>
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                 <string role="key" value="answerTextArea"></string>
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                   <string role="key" value="_id"></string>
                   <int value="47"></int>
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                   <string role="key" value="_name"></string>
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                   <string role="key" value="htmlTag"></string>
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                   <instance class="exe.engine.galleryidevice.GalleryImages">
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                 <instance class="exe.engine.field.TextAreaField" reference="30">
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                   <string role="key" value="htmlTag"></string>
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                   <instance class="exe.engine.galleryidevice.GalleryImages">
                    <dictionary>
                     <string role="key" value=".listitems"></string>
                     <list></list>
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               <instance class="exe.engine.field.SelectOptionField">
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                 <instance class="exe.engine.field.TextAreaField" reference="31">
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                   <int value="51"></int>
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                   <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
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                   <string role="key" value="htmlTag"></string>
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&lt;table align=&quot;center&quot; border=&quot;0&quot;&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td&gt;&lt;img src=&quot;resources/grafico1.png&quot; height=&quot;180&quot; width=&quot;180&quot; /&gt; &lt;/td&gt;
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&lt;td align=&quot;center&quot;&gt;Gráfico 3&lt;/td&gt;
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            <string value="common.js"></string>
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              <unicode value="Free Text"></unicode>
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&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;La cinética química se ocupa del estudio de la rapidez con que se producen las reacciones químicas. Cualquier proceso químico puede descomponerse en una secuencia de pasos elementales.&lt;/span&gt;&lt;br /&gt;&lt;br /&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Las reacciones elementales suelen implicar una sola colisión entre dos moléculas, cuando eso ocurra diremos que se trata de un proceso bimolecular. También es posible que únicamente haya implicada una molécula (casos de isomerización, disociación, etc.), en este caso diremos que la reacción es unimolecular.&lt;/span&gt;&lt;br /&gt;&lt;br /&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;En muy raras ocasiones, en condiciones de muy alta presión (por ejemplo), puede darse el caso de una reacción trimolecular. &lt;/span&gt;&lt;br /&gt;&lt;br /&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Un punto importante a tener en cuenta es que muchas reacciones que se escriben como una sola ecuación sobre el papel, en realidad, consisten en una serie de&lt;/span&gt; &lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;pasos elementales. Esto será extremadamente importante a medida que aprendamos más sobre las teorías que intentan explicar los procesos globales en una reacción química.&lt;/span&gt;&lt;br /&gt;&lt;br /&gt;&lt;/p&gt;"></unicode>
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&lt;div style=&quot;text-align: justify;&quot; class=&quot;figcaption header&quot;&gt;&lt;strong&gt;La energía de activación es la energía que se debe superar para que dos moléculas reaccionen. Aquí se muestra para una reacción exotérmica.&lt;/strong&gt;&lt;/div&gt;
&lt;img src=&quot;resources/montanha2.png&quot; alt=&quot;Energía de activación&quot; style=&quot;float: right; margin: 10px;&quot; width=&quot;300&quot; height=&quot;210&quot; /&gt;&lt;figcaption class=&quot;figcaption&quot;&gt;&lt;span class=&quot;author&quot;&gt;Enric Ripoll&lt;/span&gt; &lt;span class=&quot;license&quot;&gt;&lt;span class=&quot;sep&quot;&gt;(&lt;/span&gt;&lt;a href=&quot;http://creativecommons.org/licenses/?lang=es&quot; rel=&quot;license nofollow&quot; target=&quot;_blank&quot;&gt;CC BY-SA&lt;/a&gt;&lt;span class=&quot;sep&quot;&gt;)&lt;/span&gt;&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;
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&lt;li style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Determinación de la velocidad de la reacción completa y/o la de sus pasos elementales.&lt;/span&gt;&lt;/li&gt;
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&lt;div style=&quot;text-align: center;&quot; class=&quot;figcaption header&quot;&gt;&lt;strong&gt;La oxidación del hierro se produce lentamente&lt;/strong&gt;&lt;/div&gt;
&lt;img src=&quot;resources/oxidodehierro.jpg&quot; alt=&quot;Una reacción lenta&quot; title=&quot;Una reacción lenta&quot; style=&quot;float: left; margin: 10px;&quot; height=&quot;273&quot; width=&quot;300&quot; /&gt;&lt;figcaption class=&quot;figcaption&quot;&gt;
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&lt;figure style=&quot;text-align: justify;&quot;&gt;&lt;figcaption&gt;&lt;strong&gt;La reacción química entre el tiosulfato de sodio y el ácido clorhídrico puede durar un tiempo considerable. En la misma se produce azufre que enturbia la disolución donde se produce la reacción y se desprende dióxido de azufre. Puede determinarse la velocidad de reacción estableciendo el tiempo requerido para que la solución alcance cierto grado de turbidez.&lt;/strong&gt; &lt;/figcaption&gt; &lt;video width=&quot;320&quot; height=&quot;240&quot; class=&quot;mediaelement&quot; src=&quot;resources/concentracion2.mp4&quot; controls=&quot;controls&quot;&gt;&lt;a href=&quot;resources/concentracion2.mp4&quot;&gt;Concentración.mp4&lt;/a&gt; &lt;/video&gt; &lt;figcaption&gt;Dependencia de la velocidad con la concentración. Autor: Enric Ripoll. Licencia: &lt;span class=&quot;license&quot;&gt;&lt;span class=&quot;sep&quot;&gt;(&lt;/span&gt;&lt;a href=&quot;http://creativecommons.org/licenses/?lang=es&quot; rel=&quot;license nofollow&quot; target=&quot;_blank&quot;&gt;CC BY-SA&lt;/a&gt;&lt;span class=&quot;sep&quot;&gt;)&lt;/span&gt;&lt;/span&gt; &lt;/figcaption&gt;&lt;/figure&gt;
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&lt;p&gt;&lt;span style=&quot;font-family: verdana, geneva; font-size: medium;&quot;&gt;En una reacción química los reactivos se transforman en productos a medida que transcurre el tiempo. La velocidad de una reacción se refiere a la rapidez con que se produce esta transformación.&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-family: verdana, geneva; font-size: medium;&quot;&gt;Podemos definir la velocidad de reacción media v&lt;sub&gt;m&lt;/sub&gt; como la variación de la concentración de los reactivos (o de los productos) que se da en un determinado tiempo:&lt;/span&gt;&lt;/p&gt;
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&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;En el punto anterior hemos definido la velocidad instantánea como un límite de un cociente entre la variación de la concentración de los reactivos en un tiempo determinado cuando este tiempo tiende a cero. Es fácil ver (con conocimientos básicos de matemáticas) que esta relación es justamente la derivada de la concentración respecto del tiempo:&lt;img src=&quot;resources/eXe_LaTeX_math_6.1.gif&quot; alt=&quot;Mostramos que el límite de la relación entre las variaciones de concentración e intervalo temporal es la derivada de la concentración respecto del tiempo.&quot; exe_math_latex=&quot;resources/eXe_LaTeX_math_6.1.gif.tex&quot; style=&quot;display: block; margin-left: auto; margin-right: auto;&quot; width=&quot;208&quot; height=&quot;42&quot; /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-family: verdana, geneva; font-size: medium; line-height: 1.5;&quot;&gt;Si recuerdas la interpretación geométrica de la derivada sabrás que l&lt;span style=&quot;font-family: verdana, geneva; font-size: medium; line-height: 1.5;&quot;&gt;a pendiente de la recta tangente a la curva en un punto es igual a la derivada de la función en ese punto.&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-family: verdana, geneva; font-size: medium; line-height: 1.5;&quot;&gt;Supongamos que estudiamos la reacción de formación del amoníaco:&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;&lt;img src=&quot;resources/eXe_LaTeX_math_20.gif&quot; alt=&quot;Reacción de formación del amoníaco.&quot; exe_math_latex=&quot;resources/eXe_LaTeX_math_20.gif.tex&quot; style=&quot;display: block; margin-left: auto; margin-right: auto;&quot; width=&quot;232&quot; height=&quot;23&quot; /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Si nos fijamos en la variación en la concentración de uno de los reactivos (el nitrógeno), podemos escribir la expresión de la velocidad instantánea del siguiente modo:&lt;img src=&quot;resources/eXe_LaTeX_math_12.gif&quot; alt=&quot;Expresión de la velocidad instantánea como derivada de la concentración de nitrógeno.&quot; exe_math_latex=&quot;resources/eXe_LaTeX_math_12.gif.tex&quot; style=&quot;display: block; margin-left: auto; margin-right: auto;&quot; width=&quot;120&quot; height=&quot;43&quot; /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;El signo negativo significa que el reactivo está desapareciendo.&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Pero esta misma velocidad la podemos escribir en función del resto de sustancias intervinientes en la reacción. Si tenemos en cuenta que por cada molécula de nitrógeno desaparecen 3 de hidrógeno, también será cierto que la velocidad de desaparición del hidrógeno es tres veces superior a la del nitrógeno, por tanto:&lt;img exe_math_latex=&quot;resources/eXe_LaTeX_math_14.gif.tex&quot; src=&quot;resources/eXe_LaTeX_math_14.gif&quot; alt=&quot;Expresión de la velocidad instantánea como derivada de la concentración de nitrógeno.&quot; style=&quot;display: block; margin-left: auto; margin-right: auto;&quot; width=&quot;240&quot; height=&quot;43&quot; /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Y por la misma razón, también podemos escribir la ecuación anterior en función de las variaciones de concentración de los productos:&lt;img exe_math_latex=&quot;resources/eXe_LaTeX_math_17.1.gif.tex&quot; src=&quot;resources/eXe_LaTeX_math_17.1.gif&quot; alt=&quot;Expresión de la velocidad instantánea como derivada de las concentraciones de todas las sustancias que intervienen en la reacción.&quot; style=&quot;display: block; margin-left: auto; margin-right: auto;&quot; width=&quot;360&quot; height=&quot;43&quot; /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-family: verdana, geneva; font-size: medium; line-height: 1.5;&quot;&gt;En el laboratorio, la velocidad de una reacción se calcula midiendo la concentración de alguna de las sustancias intervinientes en diferentes tiempos. Una vez llevados los valores a una gráfica, podemos calcular la pendiente de la tangente en diferentes puntos para conocer la velocidad instantánea en cada momento.&lt;/span&gt;&lt;/p&gt;
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                   <unicode content="true" value="&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;Como acabamos de ver en la introducción del punto denominado &quot;Ecuación de velocidad&quot;, la velocidad de una reacción, en general, dependerá de la concentración de reactivo que en cada momento hay. En la siguiente simulación podemos ver la representación de la concentración de reactivo de la reacción anterior en función del tiempo y al lado la representación de la velocidad en función del tiempo.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;strong&gt;                                                                                                             Escena. Variación de la velocidad en función del tiempo&lt;br /&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;div align=&quot;center&quot;&gt;
&lt;figure class=&quot;exe-figure exe-image license-CC-BY-SA position-center&quot; style=&quot;width: 972px;&quot;&gt;&lt;a onclick=&quot;window.open('concent_vel__tiempo.html','Velocidad en función del tiempo','resizable=yes,width=905,height=300,left='+(screen.availWidth/2-452.5)+',top='+(screen.availHeight/2-150)+'');return false;&quot; href=&quot;concent_vel__tiempo.html&quot;&gt;&lt;img src=&quot;resources/img_concent_vel__tiempo.png&quot; alt=&quot;Velocidad en función del tiempo&quot; title=&quot;Velocidad en función del tiempo&quot; tyle=&quot;margin: 10px;&quot; dir=&quot;ltr&quot; onmouseout=&quot;this.src='resources/img_concent_vel__tiempo.png';&quot; onmouseover=&quot;this.src='resources/img_concent_vel__tiempo2.png';&quot; warning_file=&quot;c:\users\enric\appdata\local\temp\tmpq31hee.eXe\previews\C__Ministerio_Educacion_Tema_Cinetica_Quimica_images_img_concent_vel__tiempo2.png=DOES_NOT_EXIST';&amp;quot;&quot; width=&quot;500&quot; height=&quot;142&quot; /&gt;&lt;/a&gt;&lt;figcaption class=&quot;figcaption&quot;&gt;&lt;span class=&quot;author&quot;&gt;        Enric Ripoll&lt;/span&gt;. &lt;span class=&quot;title&quot;&gt;&lt;em&gt;Velocidad en función del tiempo&lt;/em&gt;&lt;/span&gt; &lt;span class=&quot;license&quot;&gt;&lt;span class=&quot;sep&quot;&gt;(&lt;/span&gt;&lt;a href=&quot;http://creativecommons.org/licenses/?lang=es&quot; rel=&quot;license nofollow&quot; target=&quot;_blank&quot;&gt;CC BY-SA&lt;/a&gt;&lt;span class=&quot;sep&quot;&gt;)&lt;/span&gt;&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;
&lt;/div&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;Como acabas de ver en la simulación anterior, la velocidad de una reacción depende de la concentración de reactivo que va quedando. Para una reacción de este tipo &lt;img src=&quot;resources/eXe_LaTeX_math_1.gif&quot; alt=&quot;A más B para dar C&quot; style=&quot;vertical-align: middle;&quot; exe_math_latex=&quot;resources/eXe_LaTeX_math_1.gif.tex&quot; width=&quot;104&quot; height=&quot;17&quot; /&gt;, la ecuación de la velocidad será:&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: center;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;&lt;img src=&quot;resources/eXe_LaTeX_math_2.1.gif&quot; alt=&quot;uve igual a ka multiplicado por A elevado a alfa y multiplicado por B elevado a beta.&quot; exe_math_latex=&quot;resources/eXe_LaTeX_math_2.1.gif.tex&quot; width=&quot;152&quot; height=&quot;28&quot; /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Donde k es la llamada constante cinética (que depende del tipo de reacción y de la temperatura) y alfa y beta son los órdenes parciales de la reacción respecto de A y de B. Los órdenes parciales no coinciden, en general, con la estequiometría de la reacción. Lógicamente, las unidades de k dependerán de los órdenes de la reacción.&lt;br /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Se llama orden total de la reacción a la suma de todos los órdenes parciales de la reacción, en este caso sería &lt;img src=&quot;resources/eXe_LaTeX_math_3.gif&quot; alt=&quot;Alfa más beta&quot; exe_math_latex=&quot;resources/eXe_LaTeX_math_3.gif.tex&quot; width=&quot;48&quot; height=&quot;19&quot; /&gt;.&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Un modo de proceder en el laboratorio para calcular los órdenes parciales de una reacción es mantener las concentraciones de todos los reactivos (excepto la del reactivo cuyo orden pretendemos conocer) constantes y observar a intervalos de tiempo regulares la concentración del reactivo en estudio (véase el siguiente punto).&lt;/span&gt;&lt;/p&gt;
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&lt;table style=&quot;border-color: #570fef; border-width: 3px; background-color: #ccffff;&quot; dir=&quot;ltr&quot; border=&quot;3&quot; align=&quot;center&quot;&gt;&lt;caption&gt;&lt;/caption&gt;
&lt;tbody&gt;
&lt;tr&gt;
&lt;td&gt;&lt;span style=&quot;text-decoration: underline;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;Cinética de orden cero&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;span style=&quot;text-decoration: underline;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;Cinética de primer orden:&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;span style=&quot;text-decoration: underline;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;Cinética de segundo orden:&lt;/span&gt;&lt;/span&gt;&lt;/td&gt;
&lt;td&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;Gráficas&lt;/span&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td&gt;
&lt;p style=&quot;font-family: Verdana,Arial,Helvetica,sans-serif; font-size: 14px; font-style: normal; margin-left: 30px;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt; &lt;img src=&quot;resources/eXe_LaTeX_math_38.gif&quot; alt=&quot;Deducción de la ley que liga la concentración con el tiempo en una cinética de orden cero.&quot; width=&quot;136&quot; height=&quot;206&quot; /&gt;&lt;/span&gt;&lt;span style=&quot;text-decoration: underline;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;
&lt;p style=&quot;margin-left: 30px;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;&lt;img exe_math_latex=&quot;resources/eXe_LaTeX_math_46.gif.tex&quot; src=&quot;resources/eXe_LaTeX_math_46.gif&quot; alt=&quot;Deducción de la ley que liga la concentración con el tiempo en una cinética de orden uno.&quot; width=&quot;128&quot; height=&quot;225&quot; /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;/td&gt;
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&lt;p style=&quot;margin-left: 30px;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;&lt;img src=&quot;resources/eXe_LaTeX_math_52.gif&quot; alt=&quot;Deducción de la ley que liga la concentración con el tiempo en una cinética de orden dos.&quot; width=&quot;136&quot; height=&quot;247&quot; /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;/td&gt;
&lt;td&gt;
&lt;p&gt;Pulsa sobre la imagen para ampliarla&lt;/p&gt;
&lt;p&gt;&lt;a onclick=&quot;window.open('resources/graficas_diferentes_ordenes.html','graficas de diferentes ordenes','resizable=yes,width=800,height=600,left='+(screen.availWidth/2-400)+',top='+(screen.availHeight/2-300)+'');return false;&quot; href=&quot;resources/graficas_diferentes_ordenes.html&quot;&gt;&lt;img style=&quot;display: block; margin-left: auto; margin-right: auto;&quot; src=&quot;resources/tapa_tipos_cinetica.png&quot; alt=&quot;Gráfica de las concentraciones según el tipo de cinética&quot; title=&quot;Gráfica de las concentraciones según el tipo de cinética&quot; width=&quot;188&quot; height=&quot;149&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;/td&gt;
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&lt;/table&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;Cuando se usa este método, si hay más de un reactivo se estudia la variación de la concentración de uno de ellos mientras se mantienen constantes las del resto de reactivos (con una gran concentración de estos).&lt;/span&gt;&lt;/p&gt;"></unicode>
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&lt;p&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;&lt;img style=&quot;display: block; margin-left: auto; margin-right: auto;&quot; src=&quot;resources/eXe_LaTeX_math_4.gif&quot; alt=&quot;Segundo orden&quot; exe_math_latex=&quot;resources/eXe_LaTeX_math_4.gif.tex&quot; height=&quot;52&quot; width=&quot;120&quot; /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;Al representar la inversa de la concentración en función del tiempo, obtendremos una recta cuya pendiente sería la constante cinética cuya ordenada en el origen sería la inversa de la concentración inicial.&lt;/span&gt;&lt;/p&gt;
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&lt;p style=&quot;text-align: center;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;I&lt;sub&gt;2&lt;/sub&gt; + H&lt;sub&gt;2&lt;/sub&gt; → 2 HI&lt;/span&gt;&lt;/p&gt;
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&lt;script language=&quot;JavaScript&quot; type=&quot;text/JavaScript&quot;&gt;// &lt;![CDATA[
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&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;Se estudió la reacción de descomposición del agua oxigenada tabulándose su concentración en función del tiempo. Calcula la constante cinética y el orden de la reacción si los resultados fueron estos:&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: center;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;H&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;2&lt;/sub&gt;&lt;/span&gt; → &lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;H&lt;sub&gt;2&lt;/sub&gt;O&lt;/span&gt; &lt;/span&gt;+ 1/2 &lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;O&lt;sub&gt;2&lt;/sub&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
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&lt;td style=&quot;text-align: justify;&quot; colspan=&quot;2&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;&lt;/span&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;&lt;strong&gt;&lt;span style=&quot;font-size: medium; font-family: arial,helvetica,sans-serif; color: #ffffff;&quot;&gt;Tabla. Concentración de agua oxigenada en función del tiempo. &lt;/span&gt;&lt;/strong&gt;&lt;/span&gt;
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&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;t (s)&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;[H&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;2&lt;/sub&gt;] (mol/L)&lt;/span&gt;&lt;/td&gt;
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&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;0&lt;/span&gt;&lt;/td&gt;
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&lt;tr&gt;
&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;400&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;1.72&lt;/span&gt;&lt;/td&gt;
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&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;800&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;1.30&lt;/span&gt;&lt;/td&gt;
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&lt;tr&gt;
&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;1200&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;0.98&lt;/span&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;1600&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;0.73&lt;/span&gt;&lt;/td&gt;
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&lt;tr&gt;
&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;2000&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;0.54&lt;/span&gt;&lt;/td&gt;
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&lt;tr&gt;
&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;2400&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;0.39&lt;/span&gt;&lt;/td&gt;
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&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;2800&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;0.28&lt;/span&gt;&lt;/td&gt;
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&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Cuando se estudia la reacción de formación de C a partir de los reactivos A y B, se mide la velocidad inicial manteniendo las concentraciones de todos los reactivos constantes excepto la de A y se ve cómo afecta la variación de la concentración de éste al valor de la velocidad inicial.&lt;br /&gt;Si por ejemplo, al doblar la concentración de A la velocidad se cuadruplica, podemos decir que el orden parcial respecto de A es 2. &lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Supón que a partir de dos reactivos A y B variamos la concentración inicial de A manteniendo constante la de B. Los resultados se encuentran en la tabla siguiente. ¿Cuál es el orden de esta reacción respecto de A?&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;width: 380px; height: 326px;&quot; border=&quot;2&quot; cellspacing=&quot;0&quot; align=&quot;center&quot;&gt;&lt;colgroup span=&quot;2&quot; width=&quot;85&quot;&gt;&lt;/colgroup&gt;
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&lt;td height=&quot;17&quot; align=&quot;right&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: arial,helvetica,sans-serif;&quot;&gt;v&lt;sub&gt;o&lt;/sub&gt; (mmol/L·s)&lt;/span&gt;&lt;/td&gt;
&lt;td align=&quot;right&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: arial,helvetica,sans-serif;&quot;&gt;[A]&lt;sub&gt;0&lt;/sub&gt; (mmol/L)&lt;/span&gt;&lt;/td&gt;
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&lt;td height=&quot;17&quot; align=&quot;right&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: arial,helvetica,sans-serif;&quot;&gt;0,00000100&lt;/span&gt;&lt;/td&gt;
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&lt;td height=&quot;17&quot; align=&quot;right&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: arial,helvetica,sans-serif;&quot;&gt;0,00000400&lt;/span&gt;&lt;/td&gt;
&lt;td align=&quot;right&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: arial,helvetica,sans-serif;&quot;&gt;0,020&lt;/span&gt;&lt;/td&gt;
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&lt;td style=&quot;text-align: right;&quot; align=&quot;right&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: arial,helvetica,sans-serif;&quot;&gt;0,025&lt;/span&gt;&lt;/td&gt;
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&lt;td height=&quot;17&quot; align=&quot;right&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: arial,helvetica,sans-serif;&quot;&gt;0,00000900&lt;/span&gt;&lt;/td&gt;
&lt;td align=&quot;right&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: arial,helvetica,sans-serif;&quot;&gt;0,030&lt;/span&gt;&lt;/td&gt;
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&lt;td height=&quot;17&quot; align=&quot;right&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: arial,helvetica,sans-serif;&quot;&gt;0,00001225&lt;/span&gt;&lt;/td&gt;
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                <unicode content="true" value="&lt;p&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;El mecanismo de una reacción química es el conjunto de pasos sencillos que se dan en la misma. Por ejemplo en la reacción:&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify; margin-left: 120px;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;CO + NO&lt;sub&gt;2&lt;/sub&gt; → NO + CO&lt;sub&gt;2&lt;/sub&gt;&lt;br /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Los experimentos indican que esta reacción tiene lugar según la ley v = k [NO&lt;sub&gt;2&lt;/sub&gt;]&lt;sup&gt;2&lt;/sup&gt;. Un mecanismo posible para la reacción global que explica la ley sería:&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;margin-left: 120px;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;1º Paso:  2 NO&lt;sub&gt;2&lt;/sub&gt; → NO&lt;sub&gt;3&lt;/sub&gt; + NO (lento)&lt;/span&gt;&lt;br /&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;2º Paso:  NO&lt;sub&gt;3&lt;/sub&gt; + CO → NO&lt;sub&gt;2&lt;/sub&gt; + CO&lt;sub&gt;2&lt;/sub&gt; (rápido)&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;La molecularidad e&lt;/span&gt;&lt;span style=&quot;font-family: verdana, geneva; font-size: medium; line-height: 1.5;&quot;&gt;s el número de átomos, iones o moléculas que chocan simultáneamente en una reacción química. Como es evidente, será &lt;/span&gt;&lt;span style=&quot;font-family: verdana, geneva; font-size: medium; line-height: 1.5;&quot;&gt;siempre un número entero. En el ejemplo anterior la molecularidad del primer paso sería de dos (reacción bimolecular) y la del segundo paso, también.&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-family: verdana, geneva; font-size: medium; line-height: 1.5;&quot;&gt;En el caso de un paso elemental, sus coeficientes estequiométricos sí que coinciden con los órdenes parciales de la reacción, podríamos escribir las leyes de velocidad para los pasos elementales anteriores así:&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;margin-left: 120px;&quot;&gt;&lt;span style=&quot;font-family: verdana, geneva; font-size: medium; line-height: 1.5;&quot;&gt;&lt;span&gt;1º Paso:  2 NO&lt;sub&gt;2&lt;/sub&gt; → NO&lt;sub&gt;3&lt;/sub&gt; + NO (lento);            v&lt;sub&gt;1&lt;/sub&gt;=k&lt;sub&gt;1&lt;/sub&gt;[&lt;span&gt;NO&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;]&lt;sup&gt;2&lt;/sup&gt;&lt;/span&gt;&lt;br /&gt;&lt;span&gt;2º Paso:  NO&lt;sub&gt;3&lt;/sub&gt; + CO → NO&lt;sub&gt;2&lt;/sub&gt; + CO&lt;sub&gt;2&lt;/sub&gt; (rápido);   &lt;span&gt;v&lt;/span&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;span&gt;=k&lt;sub&gt;2&lt;/sub&gt;&lt;/span&gt;&lt;sub&gt;&lt;/sub&gt;&lt;span&gt;[&lt;/span&gt;&lt;span&gt;NO&lt;sub&gt;3&lt;/sub&gt;&lt;/span&gt;&lt;span&gt;]·[CO]&lt;/span&gt;&lt;sup&gt;&lt;br /&gt;&lt;/sup&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
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&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;En el mecanismo de una reacción nos interesa saber cuál es la molecularidad del paso más lento, ya que es éste el que  tiene importancia para el cálculo de los órdenes de la  reacción global.&lt;/span&gt;&lt;br /&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;Para reacciones sencillas, la molecularidad puede ser obtenida a partir de la estequiometría de la ecuación química. Así, en la reacción anterior, el paso que determinará el orden de la reacción es el primero (más lento) de modo que la ley de velocidad de la reacción global sería:&lt;/span&gt;&lt;/p&gt;
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&lt;div style=&quot;text-align: justify;&quot; class=&quot;figcaption header&quot;&gt;&lt;strong&gt;Según la teoría de las colisiones, si en una reacción hay pocos choques efectivos por unidad de tiempo, la reacción transcurrirá a baja velocidad.&lt;br /&gt;&lt;/strong&gt;&lt;/div&gt;
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&lt;div style=&quot;text-align: justify;&quot; class=&quot;figcaption header&quot;&gt;&lt;strong&gt;Según la teoría de las colisiones, si el número de choques efectivos por unidad de tiempo es grande, la velocidad de la reacción también será grande.&lt;/strong&gt;&lt;/div&gt;
&lt;img src=&quot;resources/alta_vel.png&quot; alt=&quot;Reacción rápida&quot; title=&quot;Reacción rápida&quot; style=&quot;margin: 10px; border: 1px solid black; float: right;&quot; height=&quot;300&quot; width=&quot;400&quot; /&gt;&lt;figcaption class=&quot;figcaption&quot;&gt;&lt;span class=&quot;author&quot;&gt;Enric Ripoll&lt;/span&gt;&lt;a href=&quot;Enric Ripoll&quot; target=&quot;_blank&quot; class=&quot;author&quot;&gt;&lt;/a&gt; &lt;span class=&quot;license&quot;&gt;&lt;span class=&quot;sep&quot;&gt;(&lt;/span&gt;&lt;a href=&quot;http://creativecommons.org/licenses/?lang=es&quot; rel=&quot;license nofollow&quot; target=&quot;_blank&quot;&gt;CC BY-SA&lt;/a&gt;&lt;span class=&quot;sep&quot;&gt;)&lt;/span&gt;&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;
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&lt;td&gt;&lt;address&gt;&lt;span style=&quot;color: #000000;&quot;&gt;Escena. &lt;a class=&quot;attribute-value&quot;&gt;&lt;span style=&quot;color: #000000;&quot;&gt;Sólo las moléculas que chocan con la energía y la orientación adecuadas pueden &lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/address&gt;&lt;address&gt;&lt;span style=&quot;color: #000000;&quot;&gt;&lt;a class=&quot;attribute-value&quot;&gt;&lt;span style=&quot;color: #000000;&quot;&gt;reorganizar sus átomos y transformarse. A la energía necesaria   para  que los reactivos &lt;/span&gt;&lt;/a&gt;&lt;/span&gt;&lt;/address&gt;&lt;address&gt;&lt;span style=&quot;color: #000000;&quot;&gt;&lt;a class=&quot;attribute-value&quot;&gt;&lt;span style=&quot;color: #000000;&quot;&gt;pasen a ser productos se la llama energía de activación.&lt;/span&gt;&lt;/a&gt; Fuente: elaboración propia. Licencia: &lt;/span&gt;&lt;/address&gt;&lt;address&gt;&lt;span style=&quot;color: #000000;&quot;&gt;&lt;span class=&quot;sep&quot;&gt;(&lt;/span&gt;&lt;a href=&quot;http://creativecommons.org/licenses/?lang=es&quot; rel=&quot;license nofollow&quot; target=&quot;_blank&quot;&gt;CC BY-SA&lt;/a&gt;&lt;span class=&quot;sep&quot;&gt;)&lt;/span&gt;&lt;/span&gt;&lt;/address&gt;&lt;/td&gt;
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&lt;a onclick=&quot;window.open('escena_transicion.html','','resizable=yes,width=620,height=420,left='+(screen.availWidth/2-300)+',top='+(screen.availHeight/2-200)+'');return false;&quot; href=&quot;escenas/escena_transicion.html&quot;&gt;&lt;img src=&quot;resources/img_estado_transicion1.png&quot; alt=&quot;Estado de transición&quot; title=&quot;Estado de transición&quot; style=&quot;margin: 10px; border: 1px solid black; float: right;&quot; onmouseout=&quot;this.src='resources/img_estado_transicion1.png';&quot; onmouseover=&quot;this.src='resources/img_estado_transicion2.png';&quot; width=&quot;295&quot; height=&quot;198&quot; /&gt;&lt;/a&gt;&lt;figcaption class=&quot;figcaption&quot;&gt;&lt;span class=&quot;author&quot;&gt;Enric Ripoll&lt;/span&gt;. &lt;span class=&quot;title&quot;&gt;&lt;em&gt;Estado de transición&lt;/em&gt;&lt;/span&gt; &lt;span class=&quot;license&quot;&gt;&lt;span class=&quot;sep&quot;&gt;(&lt;/span&gt;&lt;a href=&quot;http://creativecommons.org/licenses/?lang=es&quot; rel=&quot;license nofollow&quot; target=&quot;_blank&quot;&gt;CC BY-SA&lt;/a&gt;&lt;span class=&quot;sep&quot;&gt;)&lt;/span&gt;&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Cuando usamos la teoría de las colisiones vemos que sus resultados concuerdan bien con los datos experimentales observados en varias reacciones que implican la colisión de dos moléculas de gas. La reacción de descomposición del yoduro de hidrógeno sería un ejemplo ilustrativo de este caso. Esta teoría también es adecuada para explicar reacciones en solución con iones simples. Pero a menudo, las velocidades proporcionadas por este método son muy altas y no coinciden con los valores experimentales (que nos dan valores más bajos de velocidad). Esta discrepancia aumenta con la complejidad de las moléculas que reaccionan.&lt;/span&gt;&lt;br /&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;span style=&quot;font-family: verdana, geneva;&quot;&gt;&lt;/span&gt; &lt;br /&gt;&lt;/span&gt;&lt;/p&gt;"></unicode>
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&lt;div style=&quot;text-align: center;&quot; class=&quot;figcaption header&quot;&gt;&lt;strong&gt;Profesor Michael Polanyi&lt;/strong&gt;&lt;/div&gt;
&lt;img src=&quot;resources/polanyi.png&quot; alt=&quot;Professor Michael Polanyi en Inglaterra&quot; title=&quot;Professor Michael Polanyi &quot; style=&quot;margin: 10px; float: right;&quot; width=&quot;216&quot; height=&quot;358&quot; /&gt;&lt;figcaption class=&quot;figcaption&quot;&gt;&lt;a href=&quot;https://en.wikipedia.org/wiki/Michael_Polanyi&quot; target=&quot;_blank&quot; class=&quot;author&quot;&gt;Wikipedia&lt;/a&gt; &lt;span class=&quot;license&quot;&gt;&lt;span class=&quot;sep&quot;&gt;(&lt;/span&gt;&lt;a href=&quot;http://creativecommons.org/licenses/?lang=es&quot; rel=&quot;license nofollow&quot; target=&quot;_blank&quot;&gt;CC BY-NC&lt;/a&gt;&lt;span class=&quot;sep&quot;&gt;)&lt;/span&gt;&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;&lt;br /&gt;En 1930, Eyring, Polanyi et al. aplicaron los principios de la mecánica cuántica a este problema, y el resultado se conoce como Teoría del Estado de Transición (TET). En esta teoría se continúa suponiendo que la reacción se da como resultado de las colisiones entre las moléculas de los reactivos, la novedad de esta teoría es que postula la formación de un complejo activado (o estado de transición) a partir de los reactivos; después, este complejo se descompondría para formar productos. Se asume que el complejo activado está en equilibrio termodinámico con los reactivos. La fase que determinaría la velocidad de la reacción sería la descomposición del complejo activado. Esto resuelve el problema derivado de la teoría de las colisiones sobre por qué no todas las colisiones son efectivas.&lt;/span&gt;&lt;br /&gt;&lt;span style=&quot;font-size: medium;&quot;&gt;&lt;span style=&quot;font-family: verdana, geneva;&quot;&gt;Vemos que esta teoría asume que cualquier reacción simple o elemental considerada, realmente no lo es, ya que hay una primera reacción parcial en la que se forma el complejo activado y que está en equilibrio con los reactivos, en una segunda fase, el complejo activado se descompone completamente para dar el producto.&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;"></unicode>
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&lt;div class=&quot;figcaption header&quot;&gt;&lt;strong&gt;Factores que modifican la velocidad de una reacción&lt;video width=&quot;300&quot; height=&quot;240&quot; class=&quot;mediaelement&quot; src=&quot;resources/Mi_pelicula.mp4&quot; controls=&quot;controls&quot;&gt;&lt;a href=&quot;resources/Mi_pelicula.mp4&quot;&gt;Mi película.mp4&lt;/a&gt;&lt;/video&gt;&lt;/strong&gt;&lt;/div&gt;
&lt;figcaption class=&quot;figcaption&quot;&gt;&lt;address&gt;En el vídeo podemos observar la r&lt;span class=&quot;title&quot;&gt;&lt;em&gt;eacción entre el ácido cítrico y el hidrogenocarbonato de sodio. Si en lugar de un comprimido compacto los reactivos estuvieran pulverizados, veríamos que la reacción se produce con mayor rapidez. Licencia&lt;/em&gt;&lt;/span&gt; &lt;span class=&quot;license&quot;&gt;&lt;span class=&quot;sep&quot;&gt;&lt;/span&gt;&lt;a href=&quot;http://creativecommons.org/licenses/?lang=es&quot; rel=&quot;license nofollow&quot; target=&quot;_blank&quot;&gt;CC BY-SA&lt;/a&gt;&lt;span class=&quot;sep&quot;&gt;. Autor: &lt;span class=&quot;author&quot;&gt;Enric Ripoll&lt;/span&gt;.&lt;br /&gt;&lt;/span&gt;&lt;/span&gt;&lt;/address&gt;&lt;/figcaption&gt;&lt;/figure&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;La velocidad e una reacción química puede modificarse variando diferentes factores, el control de estos factores resulta crucial en los procesos industriales y en el estudio de las transformaciones químicas.&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Como la velocidad de una reacción depende del número de choques eficaces, cualquier factor que incremente la eficacia de estos choques incrementará también la velocidad de la reacción. La velocidad de una reacción será función, por tanto de:&lt;/span&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li style=&quot;text-align: justify; margin-left: 300px;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;La naturaleza de los reactivos.&lt;/span&gt;&lt;/li&gt;
&lt;li style=&quot;text-align: justify; margin-left: 300px;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;El grado de división de los reactivos.&lt;/span&gt;&lt;/li&gt;
&lt;li style=&quot;text-align: justify; margin-left: 300px;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;La concentración de los reactivos.&lt;/span&gt;&lt;/li&gt;
&lt;li style=&quot;text-align: justify; margin-left: 300px;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;La presión (en el caso de los gases).&lt;/span&gt;&lt;/li&gt;
&lt;li style=&quot;text-align: justify; margin-left: 300px;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;La temperatura.&lt;/span&gt;&lt;/li&gt;
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&lt;div style=&quot;text-align: justify;&quot; class=&quot;figcaption header&quot;&gt;&lt;strong&gt;Formación de un precipitado. Cuando hacemos reaccionar una disolución de sulfato de cobre con amoníaco, observamos la formación instantánea de un precipitado. El precipitado verde-azulado y claro que se obtiene es la sal básica del sulfato de cobre.&lt;br /&gt;&lt;/strong&gt;&lt;/div&gt;
&lt;video width=&quot;320&quot; height=&quot;240&quot; class=&quot;mediaelement&quot; src=&quot;resources/precipitado.mp4&quot; controls=&quot;controls&quot;&gt;&lt;a href=&quot;resources/precipitado.mp4&quot;&gt;precipitado.mp4&lt;/a&gt;&lt;/video&gt;&lt;figcaption class=&quot;figcaption&quot;&gt;&lt;span class=&quot;author&quot;&gt;Enric Ripoll&lt;/span&gt;. &lt;span class=&quot;title&quot;&gt;&lt;em&gt;Formación de un precipitado&lt;/em&gt;&lt;/span&gt; &lt;span class=&quot;license&quot;&gt;&lt;span class=&quot;sep&quot;&gt;(&lt;/span&gt;&lt;a href=&quot;http://creativecommons.org/licenses/?lang=es&quot; rel=&quot;license nofollow&quot; target=&quot;_blank&quot;&gt;CC BY-SA&lt;/a&gt;&lt;span class=&quot;sep&quot;&gt;)&lt;/span&gt;&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Hay muchos aspectos que señalar cuando examinamos cómo afectan las distintas propiedades de los reactivos  a la velocidad de una reacción.&lt;/span&gt;&lt;br /&gt;&lt;br /&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;En el transcurso de las reacciones químicas, los enlaces se rompen y se forman otros nuevos. La naturaleza de estos enlaces -y la facilidad con que se rompen y forman- tienen un papel fundamental en la velocidad de una reacción. Si la reacción implica  intercambio de electrones (lo que ocurre en las llamadas reacciones redox), las reacciones tienden a ser muy rápidas.&lt;/span&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt; &lt;br /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;También son muy rápidas las reacciones que implican un intercambio de iones en disolución. Por ejemplo, la formación de un precipitado verde azulado cuando hacemos reaccionar en disolución sulfato de cobre y una base transcurre muy rápidamente:&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: center;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;2NH&lt;sub&gt;3&lt;/sub&gt;+2SO&lt;sub&gt;4&lt;/sub&gt;&lt;sup&gt;2-&lt;/sup&gt;&lt;sub&gt;(ac)&lt;/sub&gt;+2Cu&lt;sup&gt;2+&lt;/sup&gt;&lt;sub&gt;(ac)&lt;/sub&gt;+2H&lt;sub&gt;2&lt;/sub&gt;O → ↓Cu&lt;sub&gt;2&lt;/sub&gt;(OH)&lt;sub&gt;&lt;sub&gt;2&lt;/sub&gt;&lt;/sub&gt;SO&lt;sub&gt;4&lt;/sub&gt;&lt;sub&gt;(s)&lt;/sub&gt;+&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;SO&lt;sub&gt;4&lt;/sub&gt;&lt;sup&gt;2-&lt;/sup&gt;&lt;sub&gt;(ac)&lt;/sub&gt;&lt;/span&gt;+2NH&lt;sub&gt;4&lt;/sub&gt;&lt;sup&gt;+&lt;/sup&gt;&lt;sub&gt;(ac)&lt;/sub&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Sin embargo, las reacciones en las que intervienen sólidos suelen ser lentas. Por ejemplo, la reacción entre un bloque de carbonato de calcio (sólido) y un ácido:&lt;/span&gt;&lt;/p&gt;
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                         <int value="2"></int>
                         <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
                         <int value="3"></int>
                         <string role="key" value="htmlTag"></string>
                         <string value="div"></string>
                         <string role="key" value="images"></string>
                         <instance class="exe.engine.galleryidevice.GalleryImages">
                          <dictionary>
                           <string role="key" value=".listitems"></string>
                           <list></list>
                           <string role="key" value="idevice"></string>
                           <reference key="192"></reference>
                          </dictionary>
                         </instance>
                         <string role="key" value="intlinks_to_anchors"></string>
                         <dictionary></dictionary>
                         <string role="key" value="nextImageId"></string>
                         <int value="0"></int>
                         <string role="key" value="parentNode"></string>
                         <reference key="188"></reference>
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                       <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                       <int value="4"></int>
                       <string role="key" value="exe.engine.field.QuizOptionField.persistenceVersion"></string>
                       <int value="1"></int>
                       <string role="key" value="feedbackTextArea"></string>
                       <instance class="exe.engine.field.TextAreaField" reference="193">
                        <dictionary>
                         <string role="key" value="_id"></string>
                         <int value="91"></int>
                         <string role="key" value="_idevice"></string>
                         <reference key="189"></reference>
                         <string role="key" value="_instruc"></string>
                         <unicode value="Type in the feedback that you want the 
student to see when selecting the particular option. If you don't complete this 
box, eXe will automatically provide default feedback as follows: &quot;Correct 
answer&quot; as indicated by the selection for the correct answer; or &quot;Wrong answer&quot;
for the other options."></unicode>
                         <string role="key" value="_name"></string>
                         <unicode value="Feedback"></unicode>
                         <string role="key" value="anchor_names"></string>
                         <list></list>
                         <string role="key" value="anchors_linked_from_fields"></string>
                         <dictionary></dictionary>
                         <string role="key" value="buttonCaption"></string>
                         <string value=""></string>
                         <string role="key" value="content_w_resourcePaths"></string>
                         <unicode content="true" value="&lt;address&gt;Piensa que esta reacción es explosiva&lt;/address&gt;"></unicode>
                         <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                         <int value="4"></int>
                         <string role="key" value="exe.engine.field.FieldWithResources.persistenceVersion"></string>
                         <int value="2"></int>
                         <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
                         <int value="3"></int>
                         <string role="key" value="htmlTag"></string>
                         <string value="div"></string>
                         <string role="key" value="images"></string>
                         <instance class="exe.engine.galleryidevice.GalleryImages">
                          <dictionary>
                           <string role="key" value=".listitems"></string>
                           <list></list>
                           <string role="key" value="idevice"></string>
                           <reference key="193"></reference>
                          </dictionary>
                         </instance>
                         <string role="key" value="intlinks_to_anchors"></string>
                         <dictionary></dictionary>
                         <string role="key" value="nextImageId"></string>
                         <int value="0"></int>
                         <string role="key" value="parentNode"></string>
                         <reference key="188"></reference>
                        </dictionary>
                       </instance>
                       <string role="key" value="isCorrect"></string>
                       <bool value="1"></bool>
                       <string role="key" value="question"></string>
                       <reference key="194"></reference>
                      </dictionary>
                     </instance>
                     <instance class="exe.engine.field.QuizOptionField">
                      <dictionary>
                       <string role="key" value="_id"></string>
                       <int value="641"></int>
                       <string role="key" value="_idevice"></string>
                       <reference key="189"></reference>
                       <string role="key" value="_instruc"></string>
                       <string value=""></string>
                       <string role="key" value="_name"></string>
                       <string value=""></string>
                       <string role="key" value="answerTextArea"></string>
                       <instance class="exe.engine.field.TextAreaField" reference="195">
                        <dictionary>
                         <string role="key" value="_id"></string>
                         <int value="642"></int>
                         <string role="key" value="_idevice"></string>
                         <reference key="189"></reference>
                         <string role="key" value="_instruc"></string>
                         <unicode value="Enter the available choices here. 
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                         <string role="key" value="_name"></string>
                         <unicode value="Option"></unicode>
                         <string role="key" value="anchor_names"></string>
                         <list></list>
                         <string role="key" value="anchors_linked_from_fields"></string>
                         <dictionary></dictionary>
                         <string role="key" value="buttonCaption"></string>
                         <string value=""></string>
                         <string role="key" value="content_w_resourcePaths"></string>
                         <unicode content="true" value="&lt;p&gt;&lt;span style=&quot;font-size: medium; font-family: 'comic sans ms', sans-serif;&quot;&gt;2 Al&lt;sub&gt;(s)&lt;/sub&gt; + 3/2 O&lt;sub&gt;2 (g)&lt;/sub&gt; → Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3 (s)&lt;/sub&gt;&lt;/span&gt;&lt;/p&gt;"></unicode>
                         <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                         <int value="4"></int>
                         <string role="key" value="exe.engine.field.FieldWithResources.persistenceVersion"></string>
                         <int value="2"></int>
                         <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
                         <int value="3"></int>
                         <string role="key" value="htmlTag"></string>
                         <string value="div"></string>
                         <string role="key" value="images"></string>
                         <instance class="exe.engine.galleryidevice.GalleryImages">
                          <dictionary>
                           <string role="key" value=".listitems"></string>
                           <list></list>
                           <string role="key" value="idevice"></string>
                           <reference key="195"></reference>
                          </dictionary>
                         </instance>
                         <string role="key" value="intlinks_to_anchors"></string>
                         <dictionary></dictionary>
                         <string role="key" value="nextImageId"></string>
                         <int value="0"></int>
                         <string role="key" value="parentNode"></string>
                         <reference key="188"></reference>
                        </dictionary>
                       </instance>
                       <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                       <int value="4"></int>
                       <string role="key" value="exe.engine.field.QuizOptionField.persistenceVersion"></string>
                       <int value="1"></int>
                       <string role="key" value="feedbackTextArea"></string>
                       <instance class="exe.engine.field.TextAreaField" reference="196">
                        <dictionary>
                         <string role="key" value="_id"></string>
                         <int value="643"></int>
                         <string role="key" value="_idevice"></string>
                         <reference key="189"></reference>
                         <string role="key" value="_instruc"></string>
                         <unicode value="Type in the feedback that you want the 
student to see when selecting the particular option. If you don't complete this 
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                         <string role="key" value="_name"></string>
                         <unicode value="Feedback"></unicode>
                         <string role="key" value="anchor_names"></string>
                         <list></list>
                         <string role="key" value="anchors_linked_from_fields"></string>
                         <dictionary></dictionary>
                         <string role="key" value="buttonCaption"></string>
                         <string value=""></string>
                         <string role="key" value="content_w_resourcePaths"></string>
                         <unicode content="true" value=""></unicode>
                         <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                         <int value="4"></int>
                         <string role="key" value="exe.engine.field.FieldWithResources.persistenceVersion"></string>
                         <int value="2"></int>
                         <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
                         <int value="3"></int>
                         <string role="key" value="images"></string>
                         <instance class="exe.engine.galleryidevice.GalleryImages">
                          <dictionary>
                           <string role="key" value=".listitems"></string>
                           <list></list>
                           <string role="key" value="idevice"></string>
                           <reference key="196"></reference>
                          </dictionary>
                         </instance>
                         <string role="key" value="intlinks_to_anchors"></string>
                         <dictionary></dictionary>
                         <string role="key" value="nextImageId"></string>
                         <int value="0"></int>
                         <string role="key" value="parentNode"></string>
                         <reference key="188"></reference>
                        </dictionary>
                       </instance>
                       <string role="key" value="isCorrect"></string>
                       <bool value="0"></bool>
                       <string role="key" value="question"></string>
                       <reference key="194"></reference>
                      </dictionary>
                     </instance>
                     <instance class="exe.engine.field.QuizOptionField">
                      <dictionary>
                       <string role="key" value="_id"></string>
                       <int value="644"></int>
                       <string role="key" value="_idevice"></string>
                       <reference key="189"></reference>
                       <string role="key" value="_instruc"></string>
                       <string value=""></string>
                       <string role="key" value="_name"></string>
                       <string value=""></string>
                       <string role="key" value="answerTextArea"></string>
                       <instance class="exe.engine.field.TextAreaField" reference="197">
                        <dictionary>
                         <string role="key" value="_id"></string>
                         <int value="645"></int>
                         <string role="key" value="_idevice"></string>
                         <reference key="189"></reference>
                         <string role="key" value="_instruc"></string>
                         <unicode value="Enter the available choices here. 
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                         <string role="key" value="_name"></string>
                         <unicode value="Option"></unicode>
                         <string role="key" value="anchor_names"></string>
                         <list></list>
                         <string role="key" value="anchors_linked_from_fields"></string>
                         <dictionary></dictionary>
                         <string role="key" value="buttonCaption"></string>
                         <string value=""></string>
                         <string role="key" value="content_w_resourcePaths"></string>
                         <unicode content="true" value="&lt;p&gt;&lt;span style=&quot;font-size: medium; font-family: 'comic sans ms', sans-serif;&quot;&gt;H&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;(l)&lt;/sub&gt; + SO&lt;sub&gt;3 (g)&lt;/sub&gt; → H&lt;sub&gt;2&lt;/sub&gt;SO&lt;sub&gt;4 (l)&lt;/sub&gt;&lt;/span&gt;&lt;/p&gt;"></unicode>
                         <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                         <int value="4"></int>
                         <string role="key" value="exe.engine.field.FieldWithResources.persistenceVersion"></string>
                         <int value="2"></int>
                         <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
                         <int value="3"></int>
                         <string role="key" value="htmlTag"></string>
                         <string value="div"></string>
                         <string role="key" value="images"></string>
                         <instance class="exe.engine.galleryidevice.GalleryImages">
                          <dictionary>
                           <string role="key" value=".listitems"></string>
                           <list></list>
                           <string role="key" value="idevice"></string>
                           <reference key="197"></reference>
                          </dictionary>
                         </instance>
                         <string role="key" value="intlinks_to_anchors"></string>
                         <dictionary></dictionary>
                         <string role="key" value="nextImageId"></string>
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                         <string role="key" value="parentNode"></string>
                         <reference key="188"></reference>
                        </dictionary>
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                       <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                       <int value="4"></int>
                       <string role="key" value="exe.engine.field.QuizOptionField.persistenceVersion"></string>
                       <int value="1"></int>
                       <string role="key" value="feedbackTextArea"></string>
                       <instance class="exe.engine.field.TextAreaField" reference="198">
                        <dictionary>
                         <string role="key" value="_id"></string>
                         <int value="646"></int>
                         <string role="key" value="_idevice"></string>
                         <reference key="189"></reference>
                         <string role="key" value="_instruc"></string>
                         <unicode value="Type in the feedback that you want the 
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                         <string role="key" value="_name"></string>
                         <unicode value="Feedback"></unicode>
                         <string role="key" value="anchor_names"></string>
                         <list></list>
                         <string role="key" value="anchors_linked_from_fields"></string>
                         <dictionary></dictionary>
                         <string role="key" value="buttonCaption"></string>
                         <string value=""></string>
                         <string role="key" value="content_w_resourcePaths"></string>
                         <unicode content="true" value=""></unicode>
                         <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                         <int value="4"></int>
                         <string role="key" value="exe.engine.field.FieldWithResources.persistenceVersion"></string>
                         <int value="2"></int>
                         <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
                         <int value="3"></int>
                         <string role="key" value="images"></string>
                         <instance class="exe.engine.galleryidevice.GalleryImages">
                          <dictionary>
                           <string role="key" value=".listitems"></string>
                           <list></list>
                           <string role="key" value="idevice"></string>
                           <reference key="198"></reference>
                          </dictionary>
                         </instance>
                         <string role="key" value="intlinks_to_anchors"></string>
                         <dictionary></dictionary>
                         <string role="key" value="nextImageId"></string>
                         <int value="0"></int>
                         <string role="key" value="parentNode"></string>
                         <reference key="188"></reference>
                        </dictionary>
                       </instance>
                       <string role="key" value="isCorrect"></string>
                       <bool value="0"></bool>
                       <string role="key" value="question"></string>
                       <reference key="194"></reference>
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                     </instance>
                     <instance class="exe.engine.field.QuizOptionField">
                      <dictionary>
                       <string role="key" value="_id"></string>
                       <int value="647"></int>
                       <string role="key" value="_idevice"></string>
                       <reference key="189"></reference>
                       <string role="key" value="_instruc"></string>
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                       <string role="key" value="_name"></string>
                       <string value=""></string>
                       <string role="key" value="answerTextArea"></string>
                       <instance class="exe.engine.field.TextAreaField" reference="199">
                        <dictionary>
                         <string role="key" value="_id"></string>
                         <int value="648"></int>
                         <string role="key" value="_idevice"></string>
                         <reference key="189"></reference>
                         <string role="key" value="_instruc"></string>
                         <unicode value="Enter the available choices here. 
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                         <string role="key" value="_name"></string>
                         <unicode value="Option"></unicode>
                         <string role="key" value="anchor_names"></string>
                         <list></list>
                         <string role="key" value="anchors_linked_from_fields"></string>
                         <dictionary></dictionary>
                         <string role="key" value="buttonCaption"></string>
                         <string value=""></string>
                         <string role="key" value="content_w_resourcePaths"></string>
                         <unicode content="true" value="&lt;p&gt;&lt;span style=&quot;font-size: medium; font-family: arial,helvetica,sans-serif;&quot; size=&quot;-1&quot;&gt; &lt;span style=&quot;font-family: 'comic sans ms', sans-serif;&quot;&gt;Fe&lt;sup&gt;&lt;/sup&gt;&lt;sub&gt;(s)&lt;/sub&gt; + Cu&lt;sup&gt;2+&lt;/sup&gt;&lt;sub&gt;(ac)&lt;/sub&gt; →  Fe&lt;sup&gt;2+&lt;/sup&gt;&lt;sub&gt;(ac)&lt;/sub&gt; + ↓ Cu&lt;sup&gt;&lt;/sup&gt;&lt;sub&gt;(s)&lt;/sub&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;"></unicode>
                         <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
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                         <string role="key" value="exe.engine.field.FieldWithResources.persistenceVersion"></string>
                         <int value="2"></int>
                         <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
                         <int value="3"></int>
                         <string role="key" value="htmlTag"></string>
                         <string value="div"></string>
                         <string role="key" value="images"></string>
                         <instance class="exe.engine.galleryidevice.GalleryImages">
                          <dictionary>
                           <string role="key" value=".listitems"></string>
                           <list></list>
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                           <reference key="199"></reference>
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                         </instance>
                         <string role="key" value="intlinks_to_anchors"></string>
                         <dictionary></dictionary>
                         <string role="key" value="nextImageId"></string>
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                         <string role="key" value="parentNode"></string>
                         <reference key="188"></reference>
                        </dictionary>
                       </instance>
                       <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
                       <int value="4"></int>
                       <string role="key" value="exe.engine.field.QuizOptionField.persistenceVersion"></string>
                       <int value="1"></int>
                       <string role="key" value="feedbackTextArea"></string>
                       <instance class="exe.engine.field.TextAreaField" reference="200">
                        <dictionary>
                         <string role="key" value="_id"></string>
                         <int value="649"></int>
                         <string role="key" value="_idevice"></string>
                         <reference key="189"></reference>
                         <string role="key" value="_instruc"></string>
                         <unicode value="Type in the feedback that you want the 
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                         <string role="key" value="_name"></string>
                         <unicode value="Feedback"></unicode>
                         <string role="key" value="anchor_names"></string>
                         <list></list>
                         <string role="key" value="anchors_linked_from_fields"></string>
                         <dictionary></dictionary>
                         <string role="key" value="buttonCaption"></string>
                         <string value=""></string>
                         <string role="key" value="content_w_resourcePaths"></string>
                         <unicode content="true" value=""></unicode>
                         <string role="key" value="exe.engine.field.Field.persistenceVersion"></string>
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                         <string role="key" value="exe.engine.field.FieldWithResources.persistenceVersion"></string>
                         <int value="2"></int>
                         <string role="key" value="exe.engine.field.TextAreaField.persistenceVersion"></string>
                         <int value="3"></int>
                         <string role="key" value="images"></string>
                         <instance class="exe.engine.galleryidevice.GalleryImages">
                          <dictionary>
                           <string role="key" value=".listitems"></string>
                           <list></list>
                           <string role="key" value="idevice"></string>
                           <reference key="200"></reference>
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                         </instance>
                         <string role="key" value="intlinks_to_anchors"></string>
                         <dictionary></dictionary>
                         <string role="key" value="nextImageId"></string>
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                         <string role="key" value="parentNode"></string>
                         <reference key="188"></reference>
                        </dictionary>
                       </instance>
                       <string role="key" value="isCorrect"></string>
                       <bool value="0"></bool>
                       <string role="key" value="question"></string>
                       <reference key="194"></reference>
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                     </instance>
                    </list>
                   </dictionary>
                  </instance>
                 </list>
                 <string role="key" value="systemResources"></string>
                 <list>
                  <string value="common.js"></string>
                  <string value="panel-amusements.png"></string>
                  <string value="stock-stop.png"></string>
                 </list>
                 <string role="key" value="undo"></string>
                 <bool value="1"></bool>
                 <string role="key" value="userResources"></string>
                 <list></list>
                 <string role="key" value="version"></string>
                 <int value="0"></int>
                </dictionary>
               </instance>
              </list>
              <string role="key" value="_id"></string>
              <unicode value="37"></unicode>
              <string role="key" value="_package"></string>
              <reference key="2"></reference>
              <string role="key" value="anchor_fields"></string>
              <list></list>
              <string role="key" value="exe.engine.node.Node.persistenceVersion"></string>
              <int value="2"></int>
              <string role="key" value="last_full_node_path"></string>
              <string value="exe-node:Cin%C3%A9tica%20Qu%C3%ADmica:Factores%20que%20influyen%20en%20la%20velocidad%20de%20una%20reacci%C3%B3n:Naturaleza%20de%20los%20reactivos:Ejercicio"></string>
              <string role="key" value="parent"></string>
              <reference key="185"></reference>
              <string role="key" value="top_anchors_linked_from_fields"></string>
              <list></list>
              <string role="key" value="children"></string>
              <list></list>
             </dictionary>
            </instance>
           </list>
          </dictionary>
         </instance>
         <instance class="exe.engine.node.Node" reference="203">
          <dictionary>
           <string role="key" value="_title"></string>
           <unicode value="Grado de división de los reactivos"></unicode>
           <string role="key" value="idevices"></string>
           <list>
            <instance class="exe.engine.freetextidevice.FreeTextIdevice" reference="201">
             <dictionary>
              <string role="key" value="_title"></string>
              <unicode value="Free Text"></unicode>
              <string role="key" value="_author"></string>
              <unicode value="University of Auckland"></unicode>
              <string role="key" value="_purpose"></string>
              <unicode value="The majority of a learning resource will be 
establishing context, delivering instructions and providing general information.
This provides the framework within which the learning activities are built and 
delivered."></unicode>
              <string role="key" value="_tip"></string>
              <string value=""></string>
              <string role="key" value="childs"></string>
              <list></list>
              <string role="key" value="content"></string>
              <instance class="exe.engine.field.TextAreaField" reference="202">
               <dictionary>
                <string role="key" value="_id"></string>
                <int value="85"></int>
                <string role="key" value="_idevice"></string>
                <reference key="201"></reference>
                <string role="key" value="_instruc"></string>
                <unicode value="Use this field to enter text. This 
iDevice has no emphasis applied although limited formatting can be applied to 
text through the text editing buttons associated with the field."></unicode>
                <string role="key" value="_name"></string>
                <unicode value="Free Text"></unicode>
                <string role="key" value="anchor_names"></string>
                <list></list>
                <string role="key" value="anchors_linked_from_fields"></string>
                <dictionary></dictionary>
                <string role="key" value="buttonCaption"></string>
                <string value=""></string>
                <string role="key" value="content_w_resourcePaths"></string>
                <unicode content="true" value="&lt;style type=&quot;text/css&quot;&gt;&lt;!--
.boton_escena{
font-size: 16px;
color: #FFFF00;
text-align: center;
font-family: Verdana, Geneva, sans-serif;
background-clip: border-box;
font-weight: bolder;
font-style: italic;
background-color: #4646A1;
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font-size: 16px;
color: #FF9933;
text-align: center;
font-family: Verdana, Geneva, sans-serif;
background-clip: border-box;
font-weight: bolder;
font-style: italic;
background-color: #8787C3;
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--&gt;&lt;/style&gt;
&lt;p&gt;
&lt;script language=&quot;JavaScript&quot; type=&quot;text/JavaScript&quot;&gt;// &lt;![CDATA[
function MM_openBrWindow(theURL,winName,features) { //v2.0
window.open(theURL,winName,features);
}
// ]]&gt;&lt;/script&gt;
&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;El estado de agregación de los reactivos es un factor muy importante ya que cuantas más partículas choquen entre sí, mayor será la velocidad de una reacción. Obviamente, si los reactivos son gases, líquidos o están en disolución, podrán reaccionar más rápidamente que si se encuentran en estado sólido, ya que sus partículas pueden encontrarse con mayor facilidad.&lt;/span&gt;&lt;br /&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Estrechamente relacionada con el estado de agregación tenemos la cantidad de área de superficie expuesta de las partículas de los reactivos. Por ello, cuanto mayor sea el grado de división de los reactivos, mayor será su velocidad de reacción.&lt;/span&gt;&lt;span style=&quot;font-size: medium; font-family: arial,helvetica,sans-serif;&quot;&gt;&lt;/span&gt;&lt;span style=&quot;font-size: medium; font-family: arial,helvetica,sans-serif;&quot;&gt;&lt;/span&gt;&lt;span style=&quot;font-size: medium; font-family: arial,helvetica,sans-serif;&quot;&gt;&lt;/span&gt;&lt;br /&gt;&lt;span style=&quot;font-size: medium; font-family: arial,helvetica,sans-serif;&quot;&gt;&lt;/span&gt;&lt;/p&gt;
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&lt;td rowspan=&quot;2&quot;&gt;&lt;img src=&quot;resources/grafico.png&quot; alt=&quot;Gráfico&quot; title=&quot;Gráfico&quot; style=&quot;margin: 2px;&quot; height=&quot;50&quot; width=&quot;60&quot; /&gt;&lt;/td&gt;
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&lt;p class=&quot;MsoNormal&quot; align=&quot;center&quot;&gt;&lt;input name=&quot;boton3&quot; class=&quot;boton_escena&quot; id=&quot;boton3&quot; value=&quot;Gráfica del área de contacto en función del grado de división&quot; onclick=&quot;MM_openBrWindow('grafica_grado.html','cinética','width=620,height=520')&quot; type=&quot;button&quot; /&gt;&lt;/p&gt;
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&lt;div class=&quot;figcaption header&quot;&gt;&lt;strong&gt;Dependencia de la velocidad de reacción con la concentración de reactivos&lt;/strong&gt;&lt;/div&gt;
&lt;iframe width=&quot;420&quot; height=&quot;510&quot; hspace=&quot;10&quot; vspace=&quot;10&quot; src=&quot;choques.html&quot;&gt;&lt;/iframe&gt;&lt;figcaption class=&quot;figcaption&quot;&gt;&lt;span class=&quot;author&quot;&gt;En la escena podemos observar los choques producidos entre las moléculas y su dependencia con la concentración. Se evidencia que a mayor concentración, mayor es el número de choques por unidad de tiempo. &lt;span class=&quot;author&quot;&gt;Autor: Enric Ripoll&lt;/span&gt; &lt;span class=&quot;license&quot;&gt;&lt;span class=&quot;sep&quot;&gt;(&lt;/span&gt;&lt;a href=&quot;http://creativecommons.org/licenses/?lang=es&quot; rel=&quot;license nofollow&quot; target=&quot;_blank&quot;&gt;CC BY-SA&lt;/a&gt;&lt;span class=&quot;sep&quot;&gt;)&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;
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&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-family: verdana, geneva; font-size: medium;&quot;&gt;Si estudiásemos la reacción de descomposición del pentaaóxido de dinitrógeno (N&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;5 &lt;/sub&gt;→ &lt;sub&gt;&lt;/sub&gt;2NO&lt;sub&gt;2&lt;/sub&gt; + ½ O&lt;sub&gt;2&lt;sub&gt;&lt;/sub&gt;&lt;/sub&gt;) que es un proceso que transcurre en fase homogénea veríamos que su velocidad de descomposición sigue esta ley:&lt;/span&gt;&lt;/p&gt;
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&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-family: verdana, geneva; font-size: medium;&quot;&gt;En general, la velocidad de una reacción depende de la concentración de los reactivos.&lt;/span&gt;&lt;/p&gt;"></unicode>
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&lt;figure style=&quot;text-align: justify;&quot;&gt;&lt;figcaption&gt;&lt;strong&gt;En las fermentaciones actúan catalizadores biológicos denominados encimas. En las levaduras que fermentan la masa de harina hay catalizadores biológicos (encimas) que aumentan la velocidad de la reacción implicada en el proceso de formación de CO&lt;sub&gt;2&lt;/sub&gt;&lt;/strong&gt;&lt;/figcaption&gt; &lt;img src=&quot;resources/pan.jpg&quot; alt=&quot;En la imagen podemos observar la harina y la levadura que permitirán la fabricación del pan&quot; title=&quot;Elaboración del pan&quot; style=&quot;float: left; margin: 10px; border: 2px solid black;&quot; height=&quot;262&quot; width=&quot;340&quot; /&gt; &lt;figcaption&gt;Autor: Enric Ripoll.Licencia: &lt;span class=&quot;license&quot;&gt;&lt;span class=&quot;sep&quot;&gt;(&lt;/span&gt;&lt;a href=&quot;http://creativecommons.org/licenses/?lang=es&quot; rel=&quot;license nofollow&quot; target=&quot;_blank&quot;&gt;CC BY-SA&lt;/a&gt;&lt;span class=&quot;sep&quot;&gt;)&lt;/span&gt;&lt;/span&gt; &lt;/figcaption&gt;&lt;/figure&gt;
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&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;En muchísimas reacciones químicas se observa que la adición de pequeñas cantidades de sustancias provoca un aumento en la velocidad de las mismas. Estas sustancias reciben el nombre de catalizadores.&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Un catalizador es una sustancia que varía la velocidad de las reacciones químicas sin que ésta sufra ningún cambio químico permanente. &lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Por tanto un catalizador se recuperará al final de la reacción. a la acción producida por un catalizador la llamamos catálisis.&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Los catalizadores no modifican los valores de &lt;img style=&quot;vertical-align: middle;&quot; src=&quot;resources/eXe_LaTeX_math_10.gif&quot; alt=&quot;Símbolos de la variación de entalpía, entropía y energía libre&quot; exe_math_latex=&quot;resources/eXe_LaTeX_math_10.gif.tex&quot; height=&quot;17&quot; width=&quot;152&quot; /&gt;.&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Los catalizadores pueden clasificarse en:&lt;/span&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;&lt;strong&gt;Positivos&lt;/strong&gt;. Aumentan la velocidad de la reacción. Hacen que la reacción transcurra por un camino (mecanismo) diferente y que implica una menor energía de activación.&lt;/span&gt;&lt;/li&gt;
&lt;li style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;&lt;strong&gt;Negativos&lt;/strong&gt;. Disminuyen la velocidad del proceso aumentando su energía de activación.&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p style=&quot;margin-left: 30px; text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Otra clasificación posible es:&lt;/span&gt;&lt;/p&gt;
&lt;ul&gt;
&lt;li style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;&lt;strong&gt;Homogéneos.&lt;/strong&gt; Están en el mismo estado que las substancias presentes en la reacción.&lt;/span&gt;&lt;/li&gt;
&lt;li style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;&lt;strong&gt;Heterogéneos.&lt;/strong&gt; Su estado es diferente al de las sustancias presentes en la reacción.&lt;/span&gt;&lt;/li&gt;
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&lt;div class=&quot;figcaption header&quot;&gt;&lt;strong&gt;Catalizador y energía de activación. El catalizador disminuye la energía de activación de la reacción.&lt;/strong&gt;&lt;/div&gt;
&lt;img src=&quot;resources/grafica_catalizador.png&quot; alt=&quot;En la imagen podemos observar cómo un catalizador es capaz de disminuir la energía de activación&quot; title=&quot;Los catalizadores disminuyen la energía de activación&quot; style=&quot;float: right; margin: 10px;&quot; height=&quot;217&quot; width=&quot;400&quot; /&gt;&lt;figcaption class=&quot;figcaption&quot;&gt;&lt;span class=&quot;author&quot;&gt;&lt;em&gt;Catalizador y energía de activación. &lt;/em&gt;Autor: Enric Ripoll&lt;/span&gt;. &lt;span class=&quot;title&quot;&gt;&lt;em&gt;Licencia: &lt;/em&gt;&lt;/span&gt; &lt;span class=&quot;license&quot;&gt;&lt;span class=&quot;sep&quot;&gt;(&lt;/span&gt;&lt;a href=&quot;http://creativecommons.org/licenses/?lang=es&quot; rel=&quot;license nofollow&quot; target=&quot;_blank&quot;&gt;CC BY-SA&lt;/a&gt;&lt;span class=&quot;sep&quot;&gt;).&lt;/span&gt;&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Los catalizadores inorgánicos son sustancias inorgánicas que en pequeñas cantidades son capaces de aumentar la velocidad de una reacción. Los catalizadores se recuperan al final del proceso químico. &lt;br /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Es importante señalar que los catalizadores &lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;no afectan al estado de equilibrio químico, pero hacen que éste se alcance con mayor rapidez.&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;ul style=&quot;list-style-type: disc;&quot;&gt;
&lt;li&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;&lt;strong&gt;Síntesis del amoniaco&lt;/strong&gt;&lt;/span&gt;&lt;/li&gt;
&lt;/ul&gt;
&lt;p style=&quot;margin-left: 30px; text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;En la síntesis industrial del amoniaco se usa el proceso de Bosch-Haber. Este pocedimiento consiste en hacer reaccionar el nitrógeno y el hidrógeno gaseosos para producir amoníaco. &lt;br /&gt;&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;margin-left: 30px; text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Como la reacción normal es muy lenta, se acelera usando un compuesto de hierro (Fe&lt;sup&gt;3+&lt;/sup&gt;) junto a los óxidos de potasio (K&lt;sub&gt;2&lt;/sub&gt;O) y aluminio (Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt;) como catalizadores. Los catalizadores unidos a una presión y a una temperatura elevadas permiten que el rendimiento aumente hasta el 20%.&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;margin-left: 30px; text-align: center;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;3 H&lt;sub&gt;2&lt;/sub&gt; + N&lt;sub&gt;2&lt;/sub&gt; ⇆ 2 NH&lt;sub&gt;3&lt;/sub&gt;&lt;/span&gt;&lt;/p&gt;"></unicode>
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              <unicode value="Catalizadores inorgánicos (II)"></unicode>
              <string role="key" value="idevices"></string>
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                 <string role="key" value="_title"></string>
                 <unicode value="Free Text"></unicode>
                 <string role="key" value="_author"></string>
                 <unicode value="University of Auckland"></unicode>
                 <string role="key" value="_purpose"></string>
                 <unicode value="The majority of a learning resource will be 
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                   <int value="85"></int>
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                   <string role="key" value="_instruc"></string>
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&lt;div style=&quot;text-align: justify;&quot; class=&quot;figcaption header&quot;&gt;&lt;strong&gt;Escena. &lt;/strong&gt;Proceso de Haber-Bosch. Sobre el catalizador se adhieren las moléculas de hidrógeno y de nitrógeno y éste debilita sus enlaces y las orienta adecuadamente consiguiendo una mayor eficacia en los choques y en la formación de nuevos enlaces.&lt;/div&gt;
&lt;a onclick=&quot;window.open('catalizador_inorg.html','Síntesis del amoníaco','resizable=yes,width=830,height=330,left='+(screen.availWidth/2-415)+',top='+(screen.availHeight/2-165)+'');return false;&quot; href=&quot;escenas/catalizador_inorg.html&quot;&gt;&lt;img src=&quot;resources/amoniaco1.png&quot; alt=&quot;Síntesis del amoníaco&quot; title=&quot;Síntesis del amoníaco&quot; style=&quot;float: right; margin: 10px; border: 1px solid black;&quot; dir=&quot;ltr&quot; onmouseout=&quot;this.src='resources/amoniaco1.png';&quot; onmouseover=&quot;this.src='resources/amoniaco2.png';&quot; height=&quot;282&quot; width=&quot;399&quot; /&gt;&lt;/a&gt;&lt;figcaption class=&quot;figcaption&quot;&gt;&lt;span class=&quot;author&quot;&gt;Enric Ripoll&lt;/span&gt;. &lt;span class=&quot;title&quot;&gt;&lt;em&gt;Síntesis del amoníaco&lt;/em&gt;&lt;/span&gt; &lt;span class=&quot;license&quot;&gt;&lt;span class=&quot;sep&quot;&gt;(&lt;/span&gt;&lt;a href=&quot;http://creativecommons.org/licenses/?lang=es&quot; rel=&quot;license nofollow&quot; target=&quot;_blank&quot;&gt;CC BY-SA&lt;/a&gt;&lt;span class=&quot;sep&quot;&gt;)&lt;/span&gt;&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;
&lt;p style=&quot;margin-left: 30px; text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Podemos escribir el mecanismo de la reacción de síntesis del amoníaco catalizada del siguiente modo (S es el catalizador):&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;margin-left: 30px; text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;N&lt;sub&gt;2&lt;/sub&gt; + S → N&lt;sub&gt;2&lt;/sub&gt;-S&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;margin-left: 30px; text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;N&lt;sub&gt;2&lt;/sub&gt;-S + S → 2 N-S&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;margin-left: 30px; text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;H&lt;sub&gt;2&lt;/sub&gt; + 2S → 2 H-S&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;margin-left: 30px; text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;H-S + N-S → NH-S+S&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;margin-left: 30px; text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;NH-S + H-S → NH&lt;sub&gt;2&lt;/sub&gt;-S +S&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;margin-left: 30px; text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;NH&lt;sub&gt;2&lt;/sub&gt;-S +H-S → NH&lt;sub&gt;3&lt;/sub&gt;-S +S&lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;margin-left: 30px; text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;NH&lt;sub&gt;3&lt;/sub&gt;-S → NH&lt;sub&gt;3&lt;/sub&gt; +S&lt;/span&gt;&lt;/p&gt;
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&lt;div style=&quot;text-align: center;&quot; class=&quot;figcaption header&quot;&gt;&lt;strong&gt;Escena. Catalizador de automóvil&lt;/strong&gt;&lt;/div&gt;
&lt;div style=&quot;width: 400px;&quot;&gt;&lt;iframe width=&quot;420&quot; height=&quot;340&quot; src=&quot;catacata.html&quot;&gt;&lt;/iframe&gt;&lt;/div&gt;
&lt;figcaption class=&quot;figcaption&quot;&gt;&lt;span class=&quot;author&quot;&gt;Enric Ripoll&lt;/span&gt; &lt;span class=&quot;license&quot;&gt;&lt;span class=&quot;sep&quot;&gt;(&lt;/span&gt;&lt;a href=&quot;http://creativecommons.org/licenses/?lang=es&quot; rel=&quot;license nofollow&quot; target=&quot;_blank&quot;&gt;CC BY-SA&lt;/a&gt;&lt;span class=&quot;sep&quot;&gt;)&lt;/span&gt;&lt;/span&gt;&lt;/figcaption&gt;&lt;/figure&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;Nuestros automóviles incorporan en el escape de gases del motor el denominado catalizador que consiste en metales preciosos como el paladio, el platino y el rodio sólidos finamente divididos. El platino y el paladio aceleran la oxidación de los hidrocarburos y monóxido de carbono (tóxico); el rodio, la reducción de los óxidos de nitrógeno.&lt;br /&gt; El contenido de metales preciosos en un catalizador es aproximadamente de 2 g. Este valor depende de la cilindrada del motor.&lt;/span&gt;&lt;/p&gt;"></unicode>
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&lt;div align=&quot;justify&quot;&gt;&lt;img src=&quot;resources/pan.png&quot; alt=&quot;En la imagen se muestran diversos tipos de pan para cuya elaboración se usó levadura. Fuente: Wikipedia.&quot; title=&quot;Pan cocido&quot; height=&quot;281&quot; hspace=&quot;10&quot; vspace=&quot;10&quot; width=&quot;260&quot; align=&quot;left&quot; /&gt;&lt;span style=&quot;font-family: verdana, geneva;&quot;&gt;&lt;span style=&quot;font-size: medium;&quot; size=&quot;3&quot;&gt;&lt;span face=&quot;arial,helvetica,sans-serif&quot;&gt;Los catalizadores biológicos, también llamados enzimas (del griego: ἐν, en, y ζύμη, levadura) son sustancias que aumentan la velocidad de las reacciones que se dan en los seres vivos.Los e&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-size: medium;&quot; size=&quot;3&quot;&gt;&lt;span face=&quot;arial,helvetica,sans-serif&quot;&gt;nzimas son proteínas que se caracterizan por tener una gran especificidad respecto a las sustancias cuya reacción provocan.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/div&gt;
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&lt;p&gt;&lt;span style=&quot;font-family: verdana, geneva;&quot;&gt;&lt;span style=&quot;font-size: medium;&quot; size=&quot;3&quot;&gt;&lt;span face=&quot;arial,helvetica,sans-serif&quot;&gt;La industria también hace uso de este tipo de catálisis, es típica la utilización que se hace de los enzimas contenidos en las levaduras con el fin de elaborar cerveza, vin&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-size: medium;&quot; size=&quot;3&quot;&gt;&lt;span face=&quot;arial,helvetica,sans-serif&quot;&gt;o o en el proceso de panificación.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt; &lt;/p&gt;
&lt;table style=&quot;width: 452px; height: 76px;&quot; border=&quot;0&quot; align=&quot;center&quot;&gt;
&lt;tbody&gt;
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&lt;figure class=&quot;exe-figure exe-image license-CC-BY-SA&quot; style=&quot;width: 211px; text-align: center;&quot;&gt;
&lt;div class=&quot;figcaption header&quot;&gt;&lt;strong&gt;Resolviendo un cuestionario&lt;/strong&gt;&lt;/div&gt;
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                   <unicode content="true" value="&lt;p&gt;&lt;span style=&quot;font-size: medium; font-family: comic sans ms,sans-serif;&quot;&gt;La siguiente tabla muestra cómo varía la concentración de un reactivo (AB) en función del tiempo. &lt;/span&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: center;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: comic sans ms,sans-serif;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: comic sans ms,sans-serif;&quot;&gt;2 AB(g) ➝ A&lt;sub&gt;2&lt;/sub&gt;(g) +B&lt;sub&gt;2&lt;/sub&gt;(g) &lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
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&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: comic sans ms,sans-serif;&quot;&gt;0      &lt;/span&gt;&lt;/td&gt;
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&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: comic sans ms,sans-serif;&quot;&gt;1500&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: comic sans ms,sans-serif;&quot;&gt;2500&lt;/span&gt;&lt;/td&gt;
&lt;td style=&quot;text-align: right;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: comic sans ms,sans-serif;&quot;&gt;3500&lt;/span&gt;&lt;/td&gt;
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&lt;td style=&quot;text-align: center;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: comic sans ms,sans-serif;&quot;&gt;[AB] (mol/L)&lt;/span&gt;&lt;/td&gt;
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&lt;td&gt;&lt;span style=&quot;font-family: comic sans ms,sans-serif; font-size: medium;&quot;&gt;0.0353&lt;/span&gt;&lt;/td&gt;
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&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; color: #ff0000; font-family: comic sans ms,sans-serif;&quot;&gt;La mejor estrategia para determinar la constante cinética y el orden de la reacción es representar los datos de la tabla y reflexionar sobre cuál debe ser el orden de la reacción comparando esta gráfica con gráficas ya elaboradas de reacciones de orden cero, primer orden, segundo orden, tercer orden...&lt;/span&gt;&lt;/p&gt;
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&lt;p&gt;&lt;span style=&quot;font-size: medium; font-family: comic sans ms,sans-serif; color: #ff0000;&quot;&gt;Este gráfico sugiere que la cinética es de segundo orden (orden de la reacción, 2). Para confirmarlo, podemos representar el tiempo en función de 1/[AB]:&lt;/span&gt;&lt;/p&gt;
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&lt;p&gt;&lt;span style=&quot;font-size: medium; font-family: comic sans ms,sans-serif; color: #ff0000;&quot;&gt;La pendiente de esta recta será dos veces la constante cinética, por tanto k = 0.0039 L·mol/s.&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span style=&quot;font-size: medium; font-family: comic sans ms,sans-serif; color: #ff0000;&quot;&gt;La ley de la cinética de esta reacción es, por tanto:&lt;/span&gt;&lt;/p&gt;
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&lt;li&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;Calcular el orden de la reacción&lt;/span&gt;&lt;/li&gt;
&lt;li&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;Hacer diferentes representaciones gráficas: La reacción escogida deberá poder incorporar también un catalizador con el fin de estudiar el efecto que éste produce sobre la misma (pueden incluirse catalizadores biológicos)&lt;/span&gt;
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&lt;p&gt;&lt;a href=&quot;http://www.nuffieldfoundation.org/practical-chemistry/kinetics-and-equilibrium&quot; title=&quot;Página web de Nuffield donde podemos ampliar nuestros conocimientos sobre cinética&quot;&gt;&lt;img src=&quot;http://www.nuffieldfoundation.org/sites/all/themes/foundation/images/logo.png&quot; alt=&quot;Nuffield Foundation&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;https://www.youtube.com/watch?v=n9BlouWfdSs&quot; title=&quot;Práctica de cinética en un vídeo&quot;&gt;&lt;span style=&quot;font-size: xx-large;&quot; size=&quot;6&quot;&gt;&lt;/span&gt;&lt;/a&gt;&lt;a href=&quot;https://www.youtube.com/watch?v=n9BlouWfdSs&quot;&gt;&lt;span style=&quot;font-size: xx-large;&quot; size=&quot;6&quot;&gt;YouTube&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.soyouwanna.com/uses-kinetics-chemical-reactions-37315.html&quot; title=&quot;Aplicaciones de la cinética química&quot;&gt;&lt;span style=&quot;font-size: xx-large;&quot; size=&quot;6&quot;&gt;&lt;span style=&quot;color: #000000; font-family: 'Trebuchet MS',serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 18px; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; display: inline ! important; float: none; background-color: #ffffff;&quot;&gt;The Uses of the Kinetics of Chemical Reactions&lt;/span&gt;&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://sustainability.sellafieldsites.com/resources/labmouse/chemistry_as/1405.php&quot; title=&quot;Estudio del efecto de la temperatura en la velocidad de una reacción&quot;&gt;&lt;img src=&quot;http://sustainability.sellafieldsites.com/resources/labmouse/img/banner-chemistry-as.png&quot; height=&quot;55&quot; width=&quot;284&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;https://www.youtube.com/watch?v=Ft4rszTXxdc&quot; title=&quot;Video de una experiencia con un catalizador&quot;&gt;&lt;span style=&quot;font-size: xx-large;&quot; size=&quot;6&quot;&gt;YouTube &lt;/span&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a title=&quot;Eureka&quot; href=&quot;http://blog.educastur.es/eureka/2%C2%BA-bac-quim/cinetica-quimica/&quot;&gt;&lt;span style=&quot;font-size: xx-large;&quot; size=&quot;6&quot;&gt;&lt;img src=&quot;resources/eureka.png&quot; alt=&quot;Eureka&quot; title=&quot;Eureka&quot; height=&quot;67&quot; width=&quot;159&quot; /&gt;&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;"></unicode>
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&lt;p&gt;&lt;a href=&quot;http://www.nuffieldfoundation.org/practical-chemistry/kinetics-and-equilibrium&quot; title=&quot;Página web de Nuffield donde podemos ampliar nuestros conocimientos sobre cinética&quot;&gt;&lt;img src=&quot;http://www.nuffieldfoundation.org/sites/all/themes/foundation/images/logo.png&quot; alt=&quot;Nuffield Foundation&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;https://www.youtube.com/watch?v=n9BlouWfdSs&quot; title=&quot;Práctica de cinética en un vídeo&quot;&gt;&lt;span style=&quot;font-size: xx-large;&quot; size=&quot;6&quot;&gt;&lt;/span&gt;&lt;/a&gt;&lt;a href=&quot;https://www.youtube.com/watch?v=n9BlouWfdSs&quot;&gt;&lt;span style=&quot;font-size: xx-large;&quot; size=&quot;6&quot;&gt;YouTube&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://www.soyouwanna.com/uses-kinetics-chemical-reactions-37315.html&quot; title=&quot;Aplicaciones de la cinética química&quot;&gt;&lt;span style=&quot;font-size: xx-large;&quot; size=&quot;6&quot;&gt;&lt;span style=&quot;color: #000000; font-family: 'Trebuchet MS',serif; font-size: 14px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: 18px; text-align: left; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; display: inline ! important; float: none; background-color: #ffffff;&quot;&gt;The Uses of the Kinetics of Chemical Reactions&lt;/span&gt;&lt;/span&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;http://sustainability.sellafieldsites.com/resources/labmouse/chemistry_as/1405.php&quot; title=&quot;Estudio del efecto de la temperatura en la velocidad de una reacción&quot;&gt;&lt;img src=&quot;http://sustainability.sellafieldsites.com/resources/labmouse/img/banner-chemistry-as.png&quot; height=&quot;55&quot; width=&quot;284&quot; /&gt;&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href=&quot;https://www.youtube.com/watch?v=Ft4rszTXxdc&quot; title=&quot;Video de una experiencia con un catalizador&quot;&gt;&lt;span style=&quot;font-size: xx-large;&quot; size=&quot;6&quot;&gt;YouTube &lt;/span&gt;&lt;/a&gt;&lt;/p&gt;
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&lt;li&gt;&lt;a href=&quot;http://es.wikipedia.org/wiki/Cin%C3%A9tica_qu%C3%ADmica&quot; onclick=&quot;window.open('http://es.wikipedia.org/wiki/Cin%C3%A9tica_qu%C3%ADmica','Cinética en wikipedia','scrollbars=yes,resizable=yes');return false;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Wikipedia&lt;/span&gt;&lt;/a&gt;&lt;/li&gt;
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&lt;li&gt;&lt;a onclick=&quot;window.open('http://proyectodescartes.org/uudd/materiales_didacticos/cinetica_quimica-JS/index.html','Descartes','resizable=yes');return false;&quot; target=&quot;_blank&quot; href=&quot;http://proyectodescartes.org/uudd/materiales_didacticos/cinetica_quimica-JS/index.html&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana, geneva;&quot;&gt;Proyecto Descartes&lt;/span&gt;&lt;/a&gt;&lt;/li&gt;
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&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;span style=&quot;font-size: medium; font-family: verdana,geneva;&quot;&gt;Manuela Domínguez Real. &lt;em&gt;Química. &lt;/em&gt;A Coruña&lt;em&gt;. &lt;/em&gt;Baía Edicións.&lt;/span&gt;&lt;/p&gt;
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          <string role="key" value="extensiontype_"></string>
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          <string role="key" value="extensiontype_"></string>
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            <string role="key" value="extensiontype_"></string>
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            <string value="LOMv1.0"></string>
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        <string role="key" value="extensiontype_"></string>
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          <string role="key" value="extensiontype_"></string>
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          <string role="key" value="extensiontype_"></string>
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         <string role="key" value="extensiontype_"></string>
         <none></none>
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            <string role="key" value="language"></string>
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            <string value="Unidad interactiva."></string>
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         <string role="key" value="catalog"></string>
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          <dictionary>
           <string role="key" value="uniqueElementName"></string>
           <string value="catalog"></string>
           <string role="key" value="valueOf_"></string>
           <unicode value="Mi catálogo"></unicode>
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           <string role="key" value="uniqueElementName"></string>
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           <string value="ce7808e9-30ac-4971-b829-515cc2b3c56a"></string>
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         <string role="key" value="extensiontype_"></string>
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      <string role="key" value="title"></string>
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        <string role="key" value="extensiontype_"></string>
        <none></none>
        <string role="key" value="string"></string>
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           <string role="key" value="language"></string>
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           <string role="key" value="valueOf_"></string>
           <string value="Cin\xc3\xa9tica qu\xc3\xadmica"></string>
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      <string role="key" value="contribute"></string>
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         <string role="key" value="date"></string>
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             <string role="key" value="uniqueElementName"></string>
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             <string role="key" value="extensiontype_"></string>
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              <instance class="exe.engine.lom.lomsubs.LangStringSub">
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                <string role="key" value="language"></string>
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                <string role="key" value="valueOf_"></string>
                <string value="Fecha de creaci\xc3\xb3n de los metadatos"></string>
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            <string value="BEGIN:VCARD VERSION:3.0 FN:Enric Ripoll Mira EMAIL;TYPE=INTERNET: ORG: END:VCARD"></string>
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             <string role="key" value="extensiontype_"></string>
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             <string role="key" value="extensiontype_"></string>
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           <string role="key" value="extensiontype_"></string>
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             <string role="key" value="extensiontype_"></string>
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