10-At 900K the following reaction has Kp = 0.345. In an equilibrium mixture the partial pressures of SO2 and O2 are 0.210 atm and 0.770 atm, respectively. What is the equilibrium partial pressure of SO3 in the mixture? a. 0.012 atm b. 0.24 atm c. 0.056 atm d. 0.11 atm