The formation of phosgene is represented as,
CO + Cl2 COCl2
The reaction is carried out in 500 mL flask. At equilibrium o.3 mole of phosgene, 0.1 mole of CO and 0.1 mole of Cl2 are present. The equilibrium constant of the reaction is:
(a) 30 (b) 15
(c) 5 (d) 3