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If p^(@) and p(a) are the vapour pressur...

If `p^(@)` and `p_(a)` are the vapour pressures of the solvent and solution respectively and `n_(1)` and `n_(2)` are the mole fractions of solvent and solute respectively. Then,

A

`P^(0)=P[(n_(1))/(n_(1)+n_(2))]`

B

`P^(0)=P[(n_(2))/(n_(1)+n_(2))]`

C

`P=P^(0)[(n_(2))/(n_(1)+n_(2))]`

D

`P=P^(0)[(n_(1))/(n_(1)+n_(2))]`

Text Solution

Verified by Experts

The correct Answer is:
C
`(P^(0)-P)/(P^(0))=(n_(1))/(n_(1)+n_(2))or1-(P)/(P^(0))=(n_(1))/(n_(1)+n_(2))or`
`(P)/(P^(0))=1-(n_(1))/(n_(1)+n_(2))or(P)/(P^(0))=(n_(2))/(n_(1)+n_(2))or`
`P=P_(0)[(n_(2))/(n_(1)+n_(2))]`.
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