Q. For the reaction : The forward reaction at constant temperature is favoured by

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Introducing an inert gas at constant volume

Introducing chlorine gas at constant volume

Introducing an inert gas at constant pressure

None of these

Solution:

Addition inert gas at constant V has no effect on reactions having . But addition of inert gas at constant P has effect on reactions having ; and no effect if . The given reaction has on addition of inert gas at constant P, volume increases. To have K_C constant, x must increase.

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