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The relative lowering of vapour pressure...

The relative lowering of vapour pressure is equal to the mole fraction of the non-volatile solute. This statement was given by

A

Raoult

B

Henry

C

Joule

D

Dalton

Text Solution

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The correct Answer is:
A
This is Raoult,s law.
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Define relative lowering of vapour pressure.

For a non-volatile solute

Knowledge Check

  • The relative lowering in vapour pressure is

    A
    `prop x_("solute")`
    B
    `prop 1/(x_("solute"))`
    C
    `=x_("solute")`
    D
    `prop m`.

  • The relative lowering of vapour pressure of a solution on the addition of non-volatile solute

    A
    Is equal to mole fraction of the solute
    B
    Is equal to the mole fraction of the solvent
    C
    Depends upon the nature of the solute
    D
    Depends upon the nature of the solute and solvent.

  • Lowering in vapour pressure is the highest for

    A
    0.1 M urea
    B
    0.1 M NaCl
    C
    0.1 M `MgCl_2`
    D
    `0.1 MK_4[Fe(CN)_6]`

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    State Raoult's law of relative lowering of vapour pressure of a solution.

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