Phosgene, COCl2, Gained notoriety as a chemical weapon in world war I. Phosgene is by the reaction of carbon monoxide and chlorine:
CO(g) + Cl2 (g) <--> COCl2 (g)
The value of Kc for this reaction is 5.0 at 600K. What are the equilibrium and partial pressures of the three gases if a reaction vessel initially contains a mixture of reactants in which Pco =Pcl2 = .215 atm and Pcocl2=0.000 atm?