Phosphorus trichloride gas and chlorine gas react to form phosphorus pentachloride gas. PCl3(g) + Cl2(g) PCl5(g). A gas vessel is charged with a mixture of PCl3(g) and Cl2(g), which is allowed to equilibriate at 450 K. At equilibrium the partial pressures of the three gases are PPCl3 = 0.122 atm, PCl2 = 0.143 atm, and PPCl5 = 1.16 atm. (a) What is the value of Kp at this temperature? (b) Does the equilibrium favor reactants or products? A.Neither reactants nor products are favored. B.The equilibrium favors reactants. C.The equilibrium favors products.