Question

The equilibrium constant for the reaction $H_2\left(g\right()+I_2(g)\rightleftharpoons 2HI(g)$ is 50 at 500 K. In presence of suitable catalyst, equilibrium is attained four times faster. The equilibrium constant of the reaction at 500 K in the presence of catalyst should be-

• A. 200
• B. $4\times {10}^4$
• C. 50
• D. 83.6

Answer 1

The correct option is C 50

When a catalyst is present, the equilibrium is achieved faster but its magnitude remains unaffected. Thus the value of the equilibrium constant in presence of a catalyst is same as in absence of catalyst. i.e., 50.