1.

Vapour pressure of pure A = 100 torr, moles = 2. Vapour pressure of pure B = 80 torr, moles = 3. Total vapour pressure of mixture is

Answer»

440 torr
460 torr
180 torr
88 torr

Solution :`P_("total")=p_(A)^(@)x_(A)+p_(B)^(@)x_(B)`
`P_("total")=P_(A)+P_(B)=100xx(2)/(5)+80xx(3)/(5)=88` torr.


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