12. Which statement, comparing catalyzed and uncatalyzed versions of a reaction, is incorrect? a. The initial and final energy states are the same. b. The reaction mechanisms are different. c. The reaction progress diagrams are different. d. The balanced equation for the overall reaction is the same. e. The activation energy is lower in the uncatalyzed reaction.
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The initial and final energy states are the same: This statement is correct because catalysts do not change the initial and final energy states of a reaction, they only change the pathway taken to reach the final state. b. The reaction mechanisms are different: Show more…
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Identify which of the following statements are incorrect. If the statement is incorrect, rewrite it to be correct. (a) Reactions are faster at a higher temperature because activation energies are lower. (b) Rates increase with increasing concentration of reactants because there are more collisions between reactant molecules. (c) At higher temperatures a larger fraction of molecules have enough energy to get over the activation energy barrier. (d) Catalyzed and uncatalyzed reactions have identical mechanisms.
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