Select the correct K expression for the following reaction

Select the correct K expression for the following reaction:

The Correct Answer: K = [C]²[D]/[A]³

According to equilibrium expression is product of product raised to its stoichiometric coefficient devided by same of reactant.

3A + B ===== 2C + D

So, K = [C]²[D]/[A]³[B] now for solids its value is 1. so, the last option K = [C]²[D]/[A]³ is the correct answer.

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