For a solution equilibrium, a change in concentration of a reactant or product does not change K_c.

Question

Quizplus · Accepted Answer

The equilibrium constant for a reaction, represented by K, is defined as the ratio of the concentrations of the products to the concentrations of the reactants at equilibrium. Since the value of K is constant at equilibrium, a change in concentration of a reactant or product will affect the concentrations on both sides of the equation, but the ratio will remain unchanged. Therefore, K_c (which is the same as K) does not change with changes in concentration at equilibrium.

For a Solution Equilibrium, a Change in Concentration of a Reactant