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Equilibrium

Question
CBSEENCH11006376

What is concentration quotient? Under what condition does it become equal to the equilibrium constant?

Solution
Concentration coefficient: The ratio of the product of concentrations of substances produced to that of reactants is known as concentration quotient. It is denoted by Q. For example, for a reversible reaction.
straight A plus straight B rightwards harpoon over leftwards harpoon space straight C plus straight D
straight Q space equals space fraction numerator open square brackets straight C close square brackets space open square brackets straight D close square brackets over denominator open square brackets straight A close square brackets space open square brackets straight B close square brackets end fraction
At equilibrium, Q becomes equal to K (equilibrium constant).