Nitrosyl chloride NOCl decomposes to nitric oxide as well as chlorine when heated according to the reaction:
2NOCl (g) ↔ 2NO(g) + Cl2(g)
At 600 K, the equilibrium constant Kp =0.060. In a vessel at 600K there is a mixture of all three gases. The partial pressure of NOCl is 675 torr the partial pressure of NO is 43 torr as well as the partial pressure of chlorine is 23 torr. Explain what is the partial pressure of NO at equilibrium?