Which of the following is true for a reversible reaction at equilibrium?
Correct answer: C. The rate of backward reaction is equal to forward reaction
- A. The rate of forward reaction is greater than backward reaction
- B. The rate of forward reaction is lesser than backward reaction
- C. The rate of backward reaction is equal to forward reaction
- D. The rate of backward reaction is greater than forward reaction
Explanation
At equilibrium state, the rate of backward reaction becomes equal to rate of forward reaction. STB Pg- 165. Hence, option C is correct.
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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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