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Initially, 0.8 mol of PCl(5) and 0.2 mol...

Initially, 0.8 mol of `PCl_(5)` and 0.2 mol of `PCl_(3)` are mixed in a one litre vessel. At equilibrium, 0.4 mol of `PCl_(3)` is present. The value of `K_(c)` for the reaction, `PCl_(5)(g)hArr PCl_(3)(g)+Cl_(2)(g)`, would be

A

0.13 `molL^(-1)`

B

`0.05 molL^(-1)`

C

0.065 `molL^(-1)`

D

`0.1 molL^(-1)`

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The correct Answer is:
A
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