At 473K, equilibrium constant `K_(c)` for decomposition of `PCl_(5)` is `8.3x10^(-3)`. If decomposition is depicted as, `PCl_(5)(g)hArr PCl_(3)(g)+Cl_(2)(g),`
`DeltaH_(r)^(0)=124.0kJ*mol^(-1)`
Write an expression for the reaction.

Explanation

`K_(c)=([PCl_(3)][Cl_(2)])/([PCl_(5)])=8.3xx10^(-3)`