Consider the following reaction:
SO2Cl2(g)⇌SO2(g)+Cl2(g)
A reaction mixture is made containing an initial [SO2Cl2] of 2.2×10−2M . At equilibrium, [Cl2]= 1.3×10−2M .

Calculate the value of the equilibrium constant (Kc).

Question

Consider the following reaction: 
SO2Cl2(g)⇌SO2(g)+Cl2(g) 
A reaction mixture is made containing an initial [SO2Cl2] of 2.2×10−2M . At equilibrium, [Cl2]= 1.3×10−2M .

Calculate the value of the equilibrium constant (Kc).

aaronq · Answer

since they're in a 1:1 ratio, [SO2CL2] will decrease by the same amount as [CL2] increased. Similarly, [SO2] = [CL2].