Equilibrium Question 867

Question: What is the effect of increasing pressure on the dissociation of PCl5 according to the equation PCl5(g)

PCl3(g)+Cl2(g)x cal

Options:

A) Dissociation decreases

B) Dissociation increases

C) Dissociation does not change

D) None of these

Show Answer

Answer:

Correct Answer: A

Solution:

PCl5(g)

PCl3(g)+Cl2(g)

For this reaction Δn=21=1

Value of Δn is positive so the dissociation of PCl5 take forward by decrease in pressure & by increase in pressure the dissociation of PCl5 decrease.



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