Essential Chemistry for IGCSE - Chemical Reactions (Section 1 - No. 2)
What is the effect of adding an inert gas to an equilibrium mixture at constant volume?
The equilibrium shifts towards the side with fewer moles of gas.
The equilibrium shifts towards the side with more moles of gas.
The equilibrium remains unchanged.
The reaction rate increases.
Explanation
Adding an inert gas at constant volume does not change the partial pressures of the reactants or products, so equilibrium is unaffected.
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