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JEE Mains · Chemistry · STD 12 - p -Block elements - ll
The effect of addition of helium gas to the following reaction in equilibrium state, is : \(PCI _5( g ) \rightleftharpoons PCl _3( g )+ Cl _2( g )\)
- A the equilibrium will shift in the forward direction and more of \(Cl _2\) and \(PCl _3\) gases will be produced.
- B the equilibrium will go backward due to suppression of dissociation of \(PCl _5\).
- C helium will deactivate \(PCl _5\) and reaction will stop.
- D addition of helium will not affect the equilibrium.
Answer & Solution
Correct Answer
(D) addition of helium will not affect the equilibrium.
Step-by-step Solution
Detailed explanation
Addition of an inert gas (helium) to a gaseous equilibrium at constant volume does not change the partial pressures of the reacting gases. Therefore, it does not affect the equilibrium position.
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