Use the Le Chatelier's principle interactive to answer these questions. For an endothermic reaction, what happens after in increase in temperature? For an exothermic reaction, what happens after in increase in temperature?
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For an Endothermic Reaction: ** Show more…
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Is the reaction as written endo or exothermic? Right-click on the flask and choose "thermal properties." You can now change the temperature between 0 and 99 deg C. Heat or cool the system until you have perturbed the equilibrium. Then apply Le Chatelier's principle to determine if it is exothermic or endothermic. Allow the system to reach thermal equilibrium (constant temperature). Use the concentration values to determine K. Now go to the thermal properties, change the temperature, and click on the thermally isolated system option. Determine the new K at the new temperature. From the new K at the new temperature, determine if the system is endothermic or exothermic.
Sri K.
Define Le Chatelier's Principle in your own words: If the concentration of a reactant is increased, explain which way (and why) the equilibrium will shift. If a product is removed from a reaction at equilibrium, it will cause a shift in which direction? Why? If the temperature of an endothermic reaction is raised, what will be the effect on equilibrium? Explain. If the temperature of an exothermic reaction is decreased, what will be the effect on equilibrium? Explain.
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