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Assertion: Association of an inert gas a...

Assertion: Association of an inert gas at constant pressure to dissociation equilibrium of `PC1_(5) hArr PC1_(3) + C1_(2)` favours forward reaction.
Reason: `K_(c) =(alpha^(2))/(V(1 - alpha))` for the dissociation equilibrium of `PC1_(5)` where `alpha` is degree of dissociation of `PC1_(5)` .

A

`S` is correct but `E` is wrong.

B

`S` is wrong but `E` is correct.

C

Both `S` and `E` are correct and `E` is correct explanation of `S`.

D

Both `S` and `E` are correct but `E` is not correct explanation of `S`.

Text Solution

Verified by Experts

Inert gas addition at constant pressure leads to an increase in volume. To have `K_(c)` constant `'alpha'` must decrease.
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