AIIMS2009Chemistry-Chemical Equilibrium

AIIMS 2009 Chemistry Equilibrium Constant MCQ Question

Type: MCQ-numerical-Medium-Class 11

A vessel of one litre capacity containing 1 mole of SO₃ is heated till a state of equilibrium is attained. 2SO₃(g) ⇌ 2SO₂(g) + O₂(g). At equilibrium, 0.6 moles of SO₂ had formed. The value of equilibrium constant is

A

0.18

B

0.36

C

0.45

D

0.68

Correct Answer

Option D

Detailed Explanation

Equilibrium constant is given by K = [SO2]^2[O2] / [SO3]^2 = 0.675 = 0.68

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