A Sample of Pure Phosgene, COCl₂, Is Placed in a 15.0

A sample of pure phosgene, COCl₂, is placed in a 15.0 L container which is subsequently heated to 800ºK. The equilibrium constant for the decomposition of phosgene at 800ºK is 0.297, and the equilibrium mixture contains 1.1 x 10^-1 moles of Cl₂(g), what are the equilibrium partial pressures of phosgene and carbon monoxide and how many moles of phosgene were placed in the original sample?COCl_{2 (g)} CO _(g) + Cl_{2 (g)}