Home
Class 12
CHEMISTRY
The vapour pressure of pure liquid solve...

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:

A

`0.50`

B

`0.25`

C

`0.75`

D

gives data is not sufficient

Text Solution

Verified by Experts

The correct Answer is:
B
`(P^(@) -P_(s))/(P^(@)) = X_("solute")`
`X_("solute") = 0.25`
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    ALLEN|Exercise EXERCISE-03|22 Videos

  • SOLUTIONS

    ALLEN|Exercise EXERCISE-04 [A]|17 Videos

  • SOLUTIONS

    ALLEN|Exercise EXERCISE -01|53 Videos

  • S-BLOCK ELEMENTS

    ALLEN|Exercise EXERCISE -3|1 Videos

  • Some Basic Concepts of Chemistry (Mole concept)

    ALLEN|Exercise All Questions|39 Videos

Similar Questions

Explore conceptually related problems

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

The vapour pressure of pure liquid solvent 0.50 atm. When a non-volatile solute B is added to the solvent, its vapour pressure drops to 0.30 atm. Thus, mole fraction of the component B is

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 is 1.2 atm. When a non-volatile substance B is mixed in A, then its vapour pressure becomes 0.6 atm. The mole fraction of B in the solution is

The vapour pressure of pure liquid A is 0.80 atm. On mixing a non-volatile B to A, its vapour pressure becomes 0.6 atm. The mole fraction of B in the solution is:

Why vapour pressure of a liquid decreases when a non - volatile solute is added to it ?

How is the vapour pressure of a solvent affected when a non volatile solute is dissolved in it?

ALLEN-SOLUTIONS-EXERCISE -02
  1. For an ideal solution containing a nonvolatile solute, which of the fo...

    Text Solution

    |

  2. For a dilute solution containing a nonvolatile solute, the molar mass ...

    Text Solution

    |

  3. For a silute solution containing a nonvolatile solute, the molar mass ...

    Text Solution

    |

  4. An aqueous solution of acetone, CH(3)COCH(3) is 10.00% acetone by weig...

    Text Solution

    |

  5. The freezing poing of an aqueous solution of a non-electrolyte is -0.1...

    Text Solution

    |

  6. P(A)=(235y -125xy)mm of HgP(A) is partial pressure of A,x is mole frac...

    Text Solution

    |

  7. Of the following measurements the one most suitable for the determinat...

    Text Solution

    |

  8. The vapour pressure of pure benzeen at 50^(@)C is 268 torr. How many m...

    Text Solution

    |

  9. If P^(@) the vapour pressure of a pure solvent and P is the vapour pre...

    Text Solution

    |

  10. Dry air was passed successively through a solution of 5g of a solute i...

    Text Solution

    |

  11. The relative lowering of vapour pressure is equal to the ratio between...

    Text Solution

    |

  12. The vapour pressure of pure liquid solvent A is 0.80atm.When a non vol...

    Text Solution

    |

  13. Which of the following plots represents an ideal binary mixture?

    Text Solution

    |

  14. The lowering of vapour pressure in a saturated aq. Solution of salt AB...

    Text Solution

    |

  15. Which of the following represents correcty the changes in thermodynami...

    Text Solution

    |

  16. FeCI(3) on reaction with K(4)[Fe(CN)(6)] in aqueous solution gives blu...

    Text Solution

    |

  17. A liquid mixtue having composition corresponding to point z in the fig...

    Text Solution

    |

  18. The following graph represents variation of boiling point with composi...

    Text Solution

    |

  19. Which of the following is correct for a non-ideal solution of liquids ...

    Text Solution

    |

  20. Acetone and carbon disulphide form binary liquid solution showing pos...

    Text Solution

    |