Question

A reversible chemical reaction having two reactants in equilibrium. If the concentration of the reactants are doubled, then the equilibrium constant will______.

• A. Also be doubled.
• B. Be halved.
• C. Become one-fourth.
• D. Remain the same.

Answer 1

The correct option is D Remain the same.

When the concentrations of the reactants are changed, the concentrations of the products also change in such a way that the overall value of the equilibrium constant remains same.
Thus the equilibrium constant is the characteristic of a given reaction and is unaffected by the changes in the concentrations of the reactants and products.