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.
You will be redirected in
3 sec
