Question

If the initial concentrations of reactants in a reaction increase then the equilibrium constant ____________

(a) also increases

(b) decreases

(c) remains constant

(d) may increase or decrease

I got this question during an interview.

This intriguing question comes from Law of Chemical Equilibrium and Equilibrium Constant topic in portion Equilibrium of Chemistry – Class 11

Answer 1

The correct answer is (c) remains constant

Easy explanation: The equilibrium constant of a chemical reaction is independent of the initial concentrations of the reactants. So when the initial concentrations of the reactants increase in a reaction the equilibrium constant remains the same.