If the equilibrium constant for the given reaction $\mathrm{NO} \rightleftharpoons \frac{1}{2} \math

Question

If the equilibrium constant for the given reaction $\mathrm{NO} \rightleftharpoons \frac{1}{2} \mathrm{~N}_2+\frac{1}{2} \mathrm{O}_2$, is 0.25 then the equilibrium constant for the reaction, $\frac{1}{2} \mathrm{~N}_2+\frac{1}{2} \mathrm{O}_2 \rightleftharpoons \mathrm{NO}$ will be

Professor PC Thomas Classes · Answer

(d) : $\mathrm{NO} \rightleftharpoons \frac{1}{2} \mathrm{~N}_2+\frac{1}{2} \mathrm{O}_2 ; K_c=0.25$ 
$ \frac{1}{2} \mathrm{~N}_2+\frac{1}{2} \mathrm{O}_2 \rightleftharpoons \mathrm{NO} ; K_c^{\prime}=\frac{1}{K_c}=\frac{1}{0.25}=4 $