Calculate percentage change in `M_(avg)` of the mixture, if `PCl_(5)` undergo `50%` decomposition.
`PCl_(5) rArr PCl_(3) + Cl_(2)`

For the reaction : PCl_(5)(g) rarr PCl_(3)(g) + Cl_(2)(g)

PCl_(5) overset(Delta)to PCl_(3)+Cl_(2)

PCl_(5) overset(Delta)to PCl_(3)+Cl_(2)

PCl_(5) overset(Delta)to PCl_(3)+Cl_(2)

For the reaction, PCl_(5)(g)to PCl_(3)(g)+Cl_(2)(g)

For the reaction PCl_(5_((g))) rarr PCl_(3_((g)))+Cl_(2_((g)))

At a particular temperature, PCl_(5)(g) undergoes 50% dissociation. The equilibrium constant for PCl_(5)(g) rarr PCl_(3)(g) + Cl_(2)(g) is 2atm. The pressure of the equilibrium mixture is

Phosphorous pentachloride when heated in a sealed tube at 700 K it undergoes decomposition as PCl_(5)(g) hArr PCl_(3)(g)+Cl_(2)(g), K_(p)=38 atm Vapour density of the mixture is 74.25 . Percentage dissociation of PCl_(5) may be given as