1.

Liquids A and B from an ideal solution and the former has stronger intermolecular forces. If X_A and X'_A are the mole fractions of A in the solution and vapour inequilibrium, then

Answer»

<P>`(X'_A)/(X_A) = 1`
`(X'_A)/X_A GT 1`
`(X'_A)/(X_A)=1`
`X'_A + X_A =1`

Solution :`x_A^.= p_A/p = (p_A^@ x_A)/p rArr x_A^./x_A = (p_A^@)/p LT 1`
(since the liquid A is less valatile,`p_A^@ lt P`)


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