1.

At a certain temperature and a total pressure of 10^(5) Pa, iodine vapours contain 40% by volume of iodine atoms [I_(2(g))iff2I_((g))]. K_(p) for the equilibrium will be

Answer»

<P>`0.67`
`1.5`
`2.67xx10^(4)`
`9.0xx10^(4)`

SOLUTION :Partial pressure of I atoms `(P_(I))`
`=(40)/(100)xx10^(5)Pa=0.40xx10^(5)Pa`
Partial pressure of `I_(2)(P_(I_(2)))=(60)/(100)xx10^(5)Pa=0.60xx10^(5)Pa`
`K_(p)=(P_(I)^(2))/(P_(I_(2)))=((0.4xx10^(5))^(2))/(0.60xx10^(5))=2.67xx10^(4)`


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