The equilibrium constant, Kp, for the reaction: PCl3 (g) + Cl2 (g) ⇌ PCl5 (g)  is 0.0870 at 300°C. A flask is charged with 0.50 atm PCl3, 0.50 atm Cl2 and 0.20 atm PCl5, at 300°C. The equilibrium partial pressures are PCl3 = Cl2 = 0.66 atm and PCl5 = 0.38 atm. Explain which effect increasing the volume of the system, will have on the mole fraction of Cl2 in the equilibrium mixture.

Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter14: Chemical Equilibrium
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The equilibrium constant, Kp, for the reaction:

PCl3 (g) + Cl2 (g) ⇌ PCl5 (g)  is 0.0870 at 300°C.

A flask is charged with 0.50 atm PCl3, 0.50 atm Cl2 and 0.20 atm PCl5, at 300°C.

The equilibrium partial pressures are PCl3 = Cl2 = 0.66 atm and PCl5 = 0.38 atm.

Explain which effect increasing the volume of the system, will have on the mole fraction of Cl2 in the equilibrium mixture.

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