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2 moles of PCl5 were heated at 327^@C in...

2 moles of `PCl_5` were heated at `327^@C` in a 2 litre flask. It was found that `40%` of PCl_5` dissociates to give `PCl_3` and `Cl_2` at equilibrium. Calculate the equilibrium constant for the dissociation of `PCl_5` at equilibrium.

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Two moles of PCl_5 are heated at 327^(@) C in a closed vessel of volume 21. When equilibrium is established, it is found that 40% of PCl_5 has dissociated into PCl_3 and Cl_2 . Calculate the equilibrium constant for the reaction.

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