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Mole fraction of toluene in the vapour w...

Mole fraction of toluene in the vapour which is in equilibrium with a solution containing benzene and toluene having `2` moles each is Given : Saturation vapour pressure of benzene = 120 torr Saturation vapour pressure of toluene = 80 torr

A

`0.5`

B

`0.25`

C

`0.6`

D

`0.4`

Text Solution

Verified by Experts

The correct Answer is:
D
Total vapour pressure
`(1)/(2)xx120+(1)/(2)xx80=100`torr
`y_(A)xx100=x_(A)p_(A)^@` as per Raoult's law
or `y_(t)=(1)/(2)xx(80)/(100)=0.4`
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Calculate the mole fraction of toluence in the vapour phase which is in equilibrium with a solution of benzene and toluene having a mole fraction of toluene 0.50. The vapour pressure of pure benzene is 199 torr, that of toluene is 37 torr at the same temperature.

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Mole fraction of the toluene in the vapour phase which is in equilibrium with a solution of benzene ( p^(@) = 120 torr ) and toluene ( p^(@) =80 torr) having 2.0 mol of each is :

The mole fraction of toluene in the vapour phase which is in equilibrium with a solution of benzene (P_(B)^(@)=120 "torr") and toluene (P_(T)^(@)=80 "torr") having 2.0 mol of each, is

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A2Z-SOLUTIONS-Raoult'S Law, Ideal And Non-Ideal Solutions, Azeotropes
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  2. Water and ethanol from non-ideal solution with positive deviation Raou...

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  3. Mole fraction of toluene in the vapour which is in equilibrium with a ...

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  4. For an ideal binary liquid solution with P(A)^@gtP(B)^@" "x(A)and y(A)...

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  5. Total Vapour pressure of mixture of 1molA(p(A)^(0)=150 "torr")and 2mol...

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  6. Which of the following is less than zero for ideal solutions ?

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  7. If Vapour pressure of pure liquids 'A' & 'B' are 300 and 800 torr res...

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  8. Which of the following shows negative deviation from Raoult's law?

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  9. A maximum or minima obtained in the temperature, composition curve of ...

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  10. A liquid is kept in a closed vessel. If a glass plate (negligible mass...

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  11. Given at 350K, p(A)^@=300 "torr" and p(B)^@=800 "torr" the composition...

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  12. The vapour pressure of the solution of two liquids A(P^@=80mm) and B(P...

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  13. In mixture A and B ,components show -ve deviations as:

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  14. If liquids A and B from an ideal solution, than :

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  15. Which liquids pair shows a positive deviation from Raoult's law?

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  16. Benzene and toluene form nearly ideal solutions.At 20^@C, the vapour p...

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  17. A mixture of ethyl alcohol and propyl alcohol has a vapour pressure of...

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  18. At 80^@C, the vapour pressure of pure liquid A is 520 mm Hg and that o...

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  19. The vapour pressure of water at20^@Cis 17.5mmHg.if 18gof glucose (C(6)...

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  20. For A and B to form an ideal solution which of the following condition...

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