Solution of the problem 350 of the collection on genera

Solution of the problem 350 of the collection on genera

350. The reaction CO + Cl2↔COCl2 proceeds in a closed vessel at a constant temperature; The starting materials are taken in equivalent amounts. At the time of equilibrium, 50% of the initial amount of CO remains. Determine the pressure of the equilibrium gas mixture if the initial pressure was 100 kPa (750 mm Hg).