Chemistry > Physical Chemistry > Equilibrium

The equilibrium constant for the reaction $\text{N}_2(g) + \text{O}_2(g) \rightleftharpoons 2\text{NO}(g)$ at temperature T is $4 \times 10^{-4}$. The value of $K_c$ for the reaction $\text{NO}(g) \rightleftharpoons \dfrac{1}{2}\text{N}_2(g) + \dfrac{1}{2}\text{O}_2(g)$ at the same temperature is