Question

A catalyst increases the rate of forward reaction without influencing that of reverse reactions.

• A. True
• B. False

Answer 1

The correct option is B False

A catalyst is a substance which acclerates the rate of a chemical reaction without undergoing any change in its chemical composition or mass during the reaction. A catalyst acclerates the rate of a reaction by lowering the activation energy.

In the presence of a catalyst, both the forward and reverse reaction rates will speed up equally, thereby allowing the system to reach equilibrium faster. Thus, catalyst affects the kinetics but not the thermodynamics of a reaction.