In which of the following equilibrium system the rate of the backward reaction is favoured by increase of pressure

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PCl5 ⇌ PCl3 + Cl2

2SO2 + O2 ⇌ 2SO3

N2 + 3H2 ⇌ 2NH3

N2 + O2 ⇌ 2NO

answer is A.

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Detailed Solution

The rate of backward reaction is favoured by increase of pressure in the reaction as ∆n is positivePCl5 ⇌ PCl3 + Cl2

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