Which of the following best describes the common strategy by which catalysis occurs in chemical reactions?
A
Catalysts raise the to slow down the reaction.
B
Catalysts are consumed during the reaction and become part of the final products.
C
Catalysts provide an alternative reaction pathway with a lower .
D
Catalysts increase the of the reaction.
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1
Understand that catalysis involves the use of a catalyst to speed up a chemical reaction without being consumed in the process.
Recall that the activation energy (\[E_a\]) is the energy barrier that must be overcome for reactants to convert into products.
Recognize that catalysts work by providing an alternative reaction pathway that has a lower activation energy compared to the uncatalyzed reaction.
Note that lowering the activation energy increases the rate at which equilibrium is reached but does not change the equilibrium constant (\[K_{eq}\]) of the reaction.
Conclude that the correct description of catalysis is that catalysts provide an alternative reaction pathway with a lower activation energy, thereby increasing the reaction rate without being consumed or altering the equilibrium position.