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A mixture of volatile component A and B ...

A mixture of volatile component `A` and `B` has total vapour pressure (in torr)
`P=254-119chi_(A)`
where `chi_(A)` is the mole fraction of `A` in mixture. Hence, `P_(A)^(@)` and `P_(B)^(@)` are (in torr)

A

`254,119`

B

`119,254`

C

`135,254`

D

`154,119`

Text Solution

Verified by Experts

The correct Answer is:
C
`P_("total")=254-119chi_(A)`
For `P_(A)^(@): "put" chi_(A) = 1 rArr P_(A)^(@)=135 mm Hg`
For `P_(B)^(@): "put" chi_(A) = 0 rArr P_(B)^(@)=254 mm Hg`
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