1. The problem statement, all variables and given/known data At 100 o C Kc=.078 for the reaction SO2Cl2<-->SO2 + Cl2. In an equilibrium mixture the [SO2CL2]=.0108 M and [SO2]=.052 M. What is the partial pressure of Cl2 in the eq. mixture? 2. Relevant equations Kp=Kc(RT)[itex]\Delta[/itex]n P=RT/V 3. The attempt at a solution I solve for Kp but I don't know how to find the partial pressure since neither the total pressure nor the volume is given.