If the equilibrium constant for <br> $N_2 (g) + O_2(g) \leftrightharpoons 2NO (g) $ is $K$, <br> the equilibrium constant for <br> $\frac{1}{2} N_2(g) + \frac{1}{2}O_2 (g) \leftrightharpoons NO (g) $ will be :

Question

( A ) $K$
( B ) $K^2$
( C ) $K^{1/2}$
( D ) $\frac{1}{2} K$