1. Phosgene, COCl2, is a very toxic gas, which was used extensively during World War I. It decomposes to carbon dioxide and chlorine on heating, according to the equation: COCl2(g)CO(g)+Cl2(g) was found to be 0.25M. Calculate the equilibrium constant for the reaction. (Note: 0.75mol in 1 L is 0.75M ) 2. Write balanced chemical equations for the completely gaseous equilibrium reactions corresponding to the following expressions for the equilibrium constant. (a) [NO]2[N2][O2] (b) [NOCl]2[NO]2[Cl2] (c) [CS2][H2]4[CH4][H2S]2