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Phosphorous Trichloride and Phosphorous Pentachloride Equilibrate in the Presence of Molecular

Question 91

Multiple Choice

Phosphorous trichloride and phosphorous pentachloride equilibrate in the presence of molecular chlorine according to the reaction: PCl3 (g) + Cl2 (g) Phosphorous trichloride and phosphorous pentachloride equilibrate in the presence of molecular chlorine according to the reaction: PCl<sub>3</sub> (g) + Cl<sub>2</sub> (g) PCl<sub>5</sub> (g) An equilibrium mixture at 450 K contains PPCl<sub>3</sub> = 0.124 atm, PCl<sub>2</sub> = 0.157 atm, and PPCl<sub>5</sub> = 1.30 atm. What is the value of K<sub>p</sub> at this temperature? A) 66.7 B) 1.50 × 10<sup>-2</sup> C) 2.53 × 10<sup>-2</sup> D) 1.02 E) 4.63 PCl5 (g)
An equilibrium mixture at 450 K contains
PPCl3 = 0.124 atm,
PCl2 = 0.157 atm, and
PPCl5 = 1.30 atm. What is the value of Kp at this temperature?


A) 66.7
B) 1.50 × 10-2
C) 2.53 × 10-2
D) 1.02
E) 4.63

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