In which of the following equilibrium sy...

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

A

`PCl_(5) hArr PCl_(3) + Cl_2`

B

`2SO_(2) +O_(2) hArr 2SO_3`

C

`N_2 +3H_(2) hArr2NH_3`

D

`N_(2) + O_(2) hArr 2NO`

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The correct Answer is:

A

The rate of backward reaction favoured by increase of pressure in the reaction as `Deltan` is positive
`PCl_(5) hArr PCl_(3) +Cl_2`

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