Chemistry MC Chemical Equilibrium At 250.°C a sample of PCl5 was placed in a 24-liter evacuated reaction vessel and allowed to come to equilibrium. Analysis showed that at equilibrium 0.42 mole of PCl5, 0.64 mole of PCl3, and 0.64 mole of Cl2 were present in the vessel. Calculate Kp for the reaction at 250.°C.

At 250.°C a sample of PCl5 was placed in a 24-liter evacuated reaction vessel and allowed to come to equilibrium. Analysis showed that at equilibrium 0.42 mole of PCl5, 0.64 mole of PCl3, and 0.64 mole of Cl2 were present in the vessel. Calculate Kp for the reaction at 250.°C.

Chemical Equilibrium

Given:
PCl5(g) PCl3(g) + Cl2(g)

At 250.°C a sample of PCl5 was placed in a 24-liter evacuated reaction vessel and allowed to come to equilibrium. Analysis showed that at equilibrium 0.42 mole of PCl5, 0.64 mole of PCl3, and 0.64 mole of Cl2 were present in the vessel. Calculate Kp for the reaction at 250.°C.

a. 1.2
b. 1.3
c. 1.5
d. 1.8
e. 2.2

Answer: d. 1.8

Chemistry MC

At 250.°C a sample of PCl5 was placed in a 24-liter evacuated reaction vessel and allowed to come to equilibrium. Analysis showed that at equilibrium 0.42 mole of PCl5, 0.64 mole of PCl3, and 0.64 mole of Cl2 were present in the vessel. Calculate Kp for the reaction at 250.°C.

At 250.°C a sample of PCl5 was placed in a 24-liter evacuated reaction vessel and allowed to come to equilibrium. Analysis showed that at equilibrium 0.42 mole of PCl5, 0.64 mole of PCl3, and 0.64 mole of Cl2 were present in the vessel. Calculate Kp for the reaction at 250.°C.

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