Question

Which statement best describes the relationship between activation energy and rate of reaction?

Answer 1

Answer: Reducing the activation energy can increase the rate of a reaction.

Explanation:

Activation energy is the extra energy that must be supplied to reactants in order to cross the energy barrier and thus convert to products.

A catalyst is a substance which increases the rate of a reaction by taking the reaction through a different path which involves lower activation energy and thus more molecules can cross the energy barrier and convert to products leading to increased rate of reaction.

Thus a catalyst speeds up the reaction by decreasing the activation energy.

Answer 2

Answer:

b

Explanation: