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Phosphorus trichloride gas and chlorine gas react to form phosphorus pentachloride gas. 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 = 0.1 atm, PCl2 = 0.25 atm, and PPCl5 = 0.10 atm. PCl3(g) + Cl2(g) PCl5(g) (a) What is the value of Kp at this temperature?

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