1.

Mole fraction of component A in vapour phase is chi_(1) and that of component A in liquid mixture is chi_2, then (p_(A)^@)= vapour pressure of pure A, p_(B)^@ = vapour pressure of pure B), the total vapour pressure of liquid mixture is

Answer»

<P>`(P_(A)^(@)x_(1))/(x_(2))`
`(P_(A)^(@)x_(2))/(x_(1))`
`(P_(B)^(@)x_(1))/(x_(2))`
`(P_(B)^(@)x_(2))/(x_(1))`

ANSWER :B


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