Question

For the equilibrium, $PC{l}_5\rightleftharpoons PC{l}_3+C{l}_2,K_c=\frac{{\alpha }^2}{(1-\alpha )V}$ at constant temperature. WHich of the following option is correct?

• A. $K_c$ will increase with the increase in volume
• B. $K_c$ will increase with the decrease in volume
• C. $K_c$ will not change with the change in volume
• D. $K_c$ may increase or decrease with the change in volume depending upon its numerical value

Answer 1

The correct option is C $K_c$ will not change with the change in volume

$K_c$ is characteristic constant for a given reaction at a temperature.

Equilibrium constant varies with temperature. But at a particular temperature, its value remains constant. Its value increases with temperature. It is independent of the initial concentration and gives a measure of the positions of equilibrium.

Hence, option (C) is correct.