Phosgene COCI2, one of the gases used in chemical warfare in World War I, is produced by this simple exothermic reaction. CO (g) + Cl2 (g) COC2 (g) Phosgene What effect (increase, decrease, remain the same) does each of the following operations have on the amount of phosgene present at equilibrium? a.) Adding more Cl2 at constant volume b.) Lowering the temperature c.) Removing CO d.) Adding a catalyst e.) Decreasing the volume of the container

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