The Decomposition of NOCl to Form NO and Cl₂,2 NOCl(g) $\leftrightarrows$

The decomposition of NOCl to form NO and Cl₂,2 NOCl(g) $\leftrightarrows$ 2 NO(g) + Cl₂(g) ,has a K_p value of 1.6 $\times$ 10^-5 at some temperature.If 0.500 atm of NOCl is placed in a closed vessel and allowed to come to equilibrium,what is its approximate equilibrium partial pressure?

A) 0.013 atm
B) 0.025 atm
C) 0.48 atm
D) 0.49 atm
E) 0.50 atm