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Assertion : Addition of an inert gas at ...

Assertion : Addition of an inert gas at constant pressure to dissociation equilibrium of `PCl _(5) hArr PCl _(3) + Cl _(2)` favours forward reaction.
Reason: `K _(c) = (alpha ^(2))/( V (1- alpha))` for the dissociation equilibrium of `PCI_(5)` where alpha is degree of dissociation of `PCl _(5).`

A

If both (A) and (R) are correct and (R) is the correct explanation of (A).

B

If both (A) and (R) are correct, but(R) is not the correct explanation of (A)

C

If(A) is correct, but (R) is incorrect

D

If both (A) and (R) are incorrect

Text Solution

Verified by Experts

The correct Answer is:
A
Inert gas addition at constant pressure leads to an increase in volume. To have`K_(c)` constant `’alpha’`must increase.
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