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The vapour pressure of a certain pure li...

The vapour pressure of a certain pure liquid A at 298 K is 40 mbar. When a solution of B is prepared in A at the same temperature, the vapour pressure is found to be 32 mbar. The mole fraction of A in the solution is

A

`a.) 0.5`

B

`b.)0.3`

C

`c.)0.4`

D

`d.)0.8`

Text Solution

Verified by Experts

The correct Answer is:
d
d. `p=p^(@)chi_(A)`
`32=40 xx chi_(A) or chi_(A) = 0.8`
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