AIPMT PRELIMS2010Chemistry-Chemical Equilibrium

AIPMT PRELIMS 2010 Chemistry Relation between Kₚ and Kc MCQ Question

Type: MCQ-conceptual-Medium-Class 11

In which of the following reactions, Kₚ and Kc are not equal?

A

2C(s) + O₂(g) ⇌ 2CO(g)

B

2NO(g) ⇌ N₂(g) + O₂(g)

C

SO₂(g) + NO₂(g) ⇌ SO₃(g) + NO(g)

D

H₂(g) + I₂(g) ⇌ 2HI(g)

Correct Answer

Option A

Detailed Explanation

For the reaction SO₂(g) + NO₂(g) ⇌ SO₃(g) + NO(g), Δn₉ ≠ 0, hence Kₚ ≠ Kc. In other reactions, Δn₉ = 0, so Kₚ = Kc.

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