According to Lechatlier principle, decomposition of PCl5(g) is favoured at

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High temperature and high pressure

High temperature and low pressure

Low temperature and low pressure

Low temperature and high pressure

answer is B.

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Detailed Solution

PCl5g⇌ PCl3g+Cl2g, ΔH=+Ve; Reaction is endothermic . . .favoured at high TReaction involves increase in moles Δng=+ve . . . favoured at low P.

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