A) Changes potential energy of reactants
B) Changes kinetic energy of reactants
C) Changes potential energy of products
D) Changes activation energy
Correct Answer: D
Solution :
A catalyst is a substance which speeds up a reaction, but is chemically unchanged at the end of the reaction. It modifies the transition state to lower the activation energy. To increase the rate of a reaction, the catalyst increases the number of successful collisions by providing an alternative way for the reaction to happen which has a lower activation energy. Thus, the reactant energy and the product energy remain the same and only the activation energy is altered.You need to login to perform this action.
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