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Mole of PCl(5) is heated in a closed ves...

Mole of `PCl_(5)` is heated in a closed vessel of 1 litre capacity. At equilibrium 0.4 moles of chlorine is found. Calculate the equilibrium constant.

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`underset(0.6)underset(|)(PCl_(5))(g)hArr underset(0.4)underset(-)(PCl_(3))(g)+underset(0.4)underset(-)(Cl_(2))(g)` initial moles equilibrium moles
`K_(e)=([PCl_(3)][Cl_(2)])/([PCl_(5)])=(0.4xx0.41)/0.6=0.267`
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