AIPMT PRELIMS2008Chemistry-Chemical Equilibrium

AIPMT PRELIMS 2008 Chemistry Dissociation Equilibrium MCQ Question

Type: MCQ-numerical-Hard-Class 11

The dissociation equilibrium of a gas AB₂ can be represented as : 2AB₂(g) ⇌ 2AB(g) + B₂(g) The degree of dissociation is 'x' and is small compared to 1. The expression relating the degree of dissociation (x) with equilibrium constant Kₚ and total pressure P is -

A

(2Kₚ/P)¹/²

B

(Kₚ/P)

C

(2Kₚ/P)

D

(2Kₚ/P)¹/³

Correct Answer

Option C

Detailed Explanation

The expression for degree of dissociation is derived from the equilibrium constant expression considering the stoichiometry of the reaction.

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