The equilibrium constant for the reaction `N_(2)(g) + O_(2) hArr 2NO(g) is 4 xx 10^(-4) at 2000 K.` In presence of a catalyst the equilibrium is attained ten times faster. Therefore the equilibrium constant in presence of catalyst at 2000 K is

Options

A. `4 xx 10^(-3)`
B. `40 xx 10^(-4)`
C. `4 xx 10^(-4)`
D. `4 xx 10^(-2)`

Answer

C

Explanation

Equilibrium constant is independent of the presence of catalyst. This is so because the catalyst affects the rates of forward and backward reactions equally.