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A mixture of two immiscible liquids A an...

A mixture of two immiscible liquids A and B, having vapour pressure in pure state `P_(A) and P_(B)` obeys the following relationship if `ch_(A) and chi_(B)` are mole fractions of A and B in vapour phase over the solution

A

`P'_(A) = P_(M) chi'_(A)`

B

`(P'_(A))/(P'_(B))= (W_(A) xx Mw_(B))/(Mw_(A) xx W_(B))`

C

`P'_(A) gt P'_(B)` then `chi'_(A) lt chi'_(B)`

D

`P'_(A) gt P'_(B)` then `n_(A) gt n_(B)`

Text Solution

Verified by Experts

The correct Answer is:
A, B, D
For immiscible liquids
`P._(A) = P_(M). chi._(A), P._(B)= P_(M).chi._(B)`
`therefore (p._(A))/(p._(B)) = (chi._(A))/(chi._(B))= (n_(A))/(n_(B)) = (W_(A) xx Mw_(B))/(Mw_(A) xx W_(B))`. If `P._(A) gt P._(B)`, then `n_(A) gt n_(B)`
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