A 20 litre container at contains at pressure and an excess of (neglect the volume of solid ). The volume of the container is now decreased by moving the movable piston fitted in the container. The

Question

A 20 litre container at  contains  at pressure  and an excess of  (neglect the volume of solid ). The volume of the container is now decreased by moving the movable piston fitted in the container. The maximum volume of the container, when pressure of  attains its maximum value, will be :
(Given that : )

Canvas Classes · Accepted Answer

🧠 The Equilibrium Limit
In the reaction , and since only  is a gas, the equilibrium constant  is simply equal to the partial pressure of . The system will always try to maintain .

🗺️ The Quantitative Route
1. Initial State (Before Equilibrium): 
   - .
   -  (Given container volume).
   - Moles of gas (): Using .
2. Final State (At Equilibrium Threshold): 
   - We decrease volume () until pressure  (). At this point, the decomposition of  starts to balance the pressure.
   - Temperature remai

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