Problems 33 and 34 both concern the dissociation of phosphorus pentachloride into chlorine and phosp — Equilibrium Chemistry Question
Question
Problems 33 and 34 both concern the dissociation of phosphorus pentachloride into chlorine and phosphorus trichloride, which has Kp = 0.015 at 450 K.
PCl5(g) ⇌ PCl3(g) + Cl2(g) , Kp = 0.015
Which change will decrease the number of moles of Cl2(g) present in this system at equilibrium?
A.
Increasing the volume of the container.
B.
Increasing the pressure by injecting Ar(g).
C.
Increasing the pressure by injecting PCl5(g).
D.✓ Correct
Decreasing the temperature.
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