The role of catalyst in reversible reaction is to :
Correct answer: C. Allow the equilibrium to be achieved quickly
- A. Alter the equilibrium constant of reaction
- B. Increase the rate of forward reaction
- C. Allow the equilibrium to be achieved quickly
- D. Decrease the rate of backward reaction
Explanation
The primary role of a catalyst in a reversible reaction is to speed up the attainment of equilibrium (Option C). By lowering the activation energy for both the forward and backward reactions, the catalyst facilitates the conversion of reactants to products and vice versa. This acceleration enables the system to reach equilibrium more rapidly.
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About Chemical Equilibrium
Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.
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