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Under certain conditions, the equilibriu...

Under certain conditions, the equilibrium constant for the decomposition of `PCl_(5)(g)` into `PCl_(3)(g)` and `Cl_(2)(g)` is `0.0211 "mol"L^(-1)`.
What are the equilibrium concentrations of `PCl_(5),PCl_(3)d` and `Cl_(2)` if the initial concentration of `PCl_(5)` was `1.00 M`?

Text Solution

Verified by Experts

`underset(1-x)(PCl_(5))hArr underset(x)(PCl_(3))+underset(x)(Cl_(2))`
`K_(c)=([PCl_(3)][Cl_(2)])/([PCl_(5)])`
`0.0211=(x^(2))/(1-x)`
`[PCl_(3)]=[Cl_(2)]=0.135 "mol" L^(-1)`
`[PCl_(5)]=0.865 "mol" L^(-1)`
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