At 373 K, Keq = 2.39 for the following reaction:
SO2Cl2(g) = SO2(g) + Cl2(g)
In an equilibrium mixture of the three gases, the partial pressures of SO2Cl2 and SO2 are 3.31 atm and 1.59 atm, respectively. What is the partial pressure of Cl2 in the equilibrium mixture?