Question

A catalyst is a substance which:

• A. increases the equilibrium concentration of the product
• B. changes the equilibrium constant of the reaction
• C. shortens the time to reach equilibrium
• D. supplies energy to the reaction

Answer 1

The correct option is C

shortens the time to reach equilibrium

A catalyst increases the rate of reaction but by the same factor for both the forward and backward directions. Hence, a catalyst shortens the time required to reach equilibrium.