1.

The vapour pressure of pure liquid A and pure liquid B at 20^(@)C are 22 and 75 mm of Hg respectively. A solution.

Answer»


Solution :`x_(A)=1/(1+1)=0.5,x_(B)=1/(1+1)=0.5`
`"Vapour PRESSURE of liquid A in solution "(P_(A))=P_(A)^(@)x_(A)=(22mm)xx0.5=11mm`
`"Vapour pressure of liquid B in solution "(P_(B))=P_(B)^(@)x_(B)=(75mm)xx0.5=37.5 MM.`
`"Vapour pressure of the soution"P=P_(A)+P_(B)=(11+37.5)=48.5mm.`


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