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Question

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

A
Concentrations of SO2,Cl2 and SO2Cl2 do not change.
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B
More chlorine is formed.
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C
Concentration of SO2 is reduced.
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D
More SO2Cl2 is formed.
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Solution

The correct option is A Concentrations of SO2,Cl2 and SO2Cl2 do not change.
The volume of closed rigid container remains constant. The addition of the inert gas at constant volume, has no effect on the equilibrium of the reaction. This is because, the number of moles of reactants and products is same. Thus when helium is introduced, the concentrations of the reactants and products do not change.

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