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The vapour pressure of a solution of a n...

The vapour pressure of a solution of a non-volatile electrolyte `B` in a solvent `A` is `95%` of the vapour pressure of the solvent at the same temperature. If the molecular weight of the solvent is `0.3` times, the molecular weight of solute, the weight ratio of the solvent and solute are:

A

`0.15`

B

`5.7`

C

`0.2`

D

None of these

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The vapour pressure of a solution of a non−volatile solute B in a solvent A is 95% of the vapour pressure of the solvent at the same temperature. If the molecular weight of the solvent is 0.3 times the molecular weight of the solute, what is the weight ratio of solvent to solute?

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Knowledge Check

  • The vapour pressure of a solution of a non-volatile electrolyte (A) in solvent (B) is 95% of the vapour pressure of the solvent at the same temperature. If molarmass of B is 30% of molar mass of A, the same ratio of the solvent and solute are

    A
    0.15
    B
    0.2
    C
    `4.0`
    D
    5.7

  • Vapour pressure of a solvent containing nonvolatile solute is:

    A
    more than the vapour pressure of a solvent
    B
    less than the vapour pressure of solvent
    C
    equal to the vapour pressure of solvent
    D
    none

  • The vapour pressure of a solution having solid as solute and liquid as solvent is

    A
    directly proportional to mole fraction of the solvent
    B
    inversely proportional to mole fraction of the solvent
    C
    directly proportional to mole fraction of the solvent
    D
    inversely proportional to mole fraction of the solute.

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