Question

The role of a catalyst in a reversible reaction is to:

• A. Increase the rate of forward reaction
• B. Decrease the rate of backward reaction
• C. Alter the equilibrium constant of a reaction
• D. Allow the equilibrium to be achieved quickly

Answer 1

Answer: (D)

Allow the equilibrium to be achieved quickly

The role of a catalyst in a reversible reaction is to allow the equilibrium to be achieved quickly.
A catalyst increases the rate of forward and reverse reaction to equal extent. However, it does not affects the value of the equilibrium constant.