Question

The equilibrium, SO₂Cl₂(g)⇌SO₂(g)+Cl₂(g) is attained at 25∘C in a closed container and an inert gas, helium, is introduced. Which of the following statements are correct?

A. Concentrations of SO₂,Cl₂ and SO₂Cl₂ are not changed
B. More chlorine is formed
C. Concentration of SO₂ is reduced
D. More SO₂Cl₂ is formed

Answer 1

Introducing helium, an inert gas, into the equilibrium of SO₂Cl₂(g) does not change the concentrations of SO₂, Cl₂, or SO₂Cl₂ because it does not react with any of them and the partial pressures remain constant.

Correct option is a. Concentrations of SO₂, Cl₂, and SO₂Cl₂ are not changed.

Step-by-step explanation:

When helium, an inert gas, is introduced into a closed container with an established equilibrium of SO₂Cl₂(g) ⇌ SO₂(g) + Cl₂(g), it does not change the concentrations of the products or reactants because it does not react with any of the components of the mixture.

The action of adding helium at constant volume doesn't affect the partial pressures of the reactants or products, therefore, the equilibrium position remains unchanged.

Correct option is a. Concentrations of SO₂, Cl₂, and SO₂Cl₂ are not changed.