Home
Class 12
CHEMISTRY
On adding solute to a solvent having vap...

On adding solute to a solvent having vapour pressure `0.80atm`,vapour pressure reduces to `0.60atm`.Mole fraction of solute is

A

`0.25`

B

`0.75`

C

`0.50`

D

`0.33`

Text Solution

Verified by Experts

The correct Answer is:
A
`(P^(0)-P^(s))/(P^(0))=(n)/(n+N),P^(0)=0.80,P_(s)=0.60`
`:. (n)/(n+N)=(0.2)/(0.8)=0.25`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • SOLUTIONS

    A2Z|Exercise AIIMS Questions|32 Videos

  • SOLID STATE

    A2Z|Exercise Section D - Chapter End Test|30 Videos

  • SURFACE CHEMISTRY

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

The following solution /solvent has maximum vapour pressure

At 300 K , when a solute is aded to a solvent ,its vapour pressure over mercury reduces from 50 mm to 45 mm . The value of mole fraction of solute wil be _____.

Knowledge Check

  • On adding a solute to a solvent having vapour pressure reduces to 0.60 atm. Mole fraction of solute is :

    A
    0.25
    B
    0.75
    C
    0.5
    D
    0.33

  • On adding a solute to a solvent having vapour pressure reduces to 0.60 atm. Mole fraction of solute is :

    A
    0.25
    B
    0.75
    C
    0.5
    D
    0.33

  • At 300 K when a solute is added to a solvent its vapour pressure over the mercury reduceds from 50 mm to 45mm. The value of mole fraction of solute will be

    A
    `0.005`
    B
    `0.010`
    C
    `0.100`
    D
    `0.900`

    • Similar Questions

    Explore conceptually related problems

    The vapour pressure of a pure liquid is 0.80 atm. When a non-volatile solute is added to this liquid, its vapour pressure drops to 0.60 atm. The mole fraction of the solute in the solution is

    The vapour pressure of pure liquid solvent A is 0.80 atm.When a non volatile substances B is added to the solvent, its vapour pressure drops to 0.60 atm. Mole fraction of the components B in the solution is:

    The vapour pressure of pure liquid solvent A is 0.80 atm . When a non - volatile substance B is added to the solvent , as vapour pressure drops to 0.60 atm . Mol fraction of the component B in the solution is :

    Relative lowering of vapour pressure is ____ the mole fraction of the solute.

    Vapour pressure of a solvent containing nonvolatile solute is:

    Home
    Profile