Home
Class 12
CHEMISTRY
The vapour pressure of a solvent decreas...

The vapour pressure of a solvent decreased by 10 mm of Hg when a non-volatile solute was added to the solvent. The mole fraction of solute in solution is 0.2, what would be the mole fraction of solvent if the decrease in vapour pressure is 20 mm of Hg?

A

`0.8`

B

`0.6`

C

`0.4`

D

`0.2`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • LIQUID SOLUTION

    FIITJEE|Exercise ASSIGNMENT PROBLEMS (OBJECTIVE) level-II|30 Videos

  • LIQUID SOLUTION

    FIITJEE|Exercise COMPREHENSION-I|3 Videos

  • LIQUID SOLUTION

    FIITJEE|Exercise ASSIGNMENT PROBLEMS (SUBJECTIVE) level-II|15 Videos

  • IONIC EQUILIBRIUM

    FIITJEE|Exercise SINGLE INTEGER ANSWER QUESTIONS|4 Videos

  • NUCLEIC ACID AND VITAMIN

    FIITJEE|Exercise ASSIGNMENT PROBLEMS (OBJECTIVE)|15 Videos

Similar Questions

Explore conceptually related problems

The vapour pressure of a solvent decreased by 10 mm of Hg when a non-volatile solute was added to the solvent. The mole fraction of solute is 0.2 , what would be the mole fraction of solvent if the decrease in vapour pressure is 20 mm of Hg .

The vapour pressure of a liquid decreases by 10 torr when a non-volatile solute is dissolved. The mole fraction of the solute in solution is 0.1. What would be the mole fraction of the liquid if the decrease in vapour pressure is 20 torr, the same solute being dissolved?

The vapour pressure of a solvent decreases by 5.4 torr when a non-volatile solute is added. In this solution, mole fraction of solute is 0.2. What would be mole fraction of the solvent if decreases in vapour pressure is 16.2 torr ?

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

The mole fraction of a solvent in a solution is 0.8 . The mole fraction of the solute will be _____.

FIITJEE-LIQUID SOLUTION -ASSIGNMENT PROBLEMS (OBJECTIVE) level-I
  1. The vapour pressure of pure benzene is 639.7 mm Hg and the vapour pres...

    Text Solution

    |

  2. In certain solvent, phenol dimerizes to the extent of 60%. Its observe...

    Text Solution

    |

  3. The vapour pressure of a solvent decreased by 10 mm of Hg when a non-v...

    Text Solution

    |

  4. At 40^(@)C, the vapour pressures in torr, of methyl alcohol and ethyl ...

    Text Solution

    |

  5. At 35^(@)C the vapour pressure of pure chloroform is 0.359 at atm and ...

    Text Solution

    |

  6. A solution containing 20.0 grams of a nonvolatile solute in exactly 1....

    Text Solution

    |

  7. A solution containing8.6 urea in one litre was found to be isotonic wi...

    Text Solution

    |

  8. The use of common salts, e.g., NaCl or CaCl(2) anhydrous, is made to c...

    Text Solution

    |

  9. On mixing 50 ml of acetone with 40 ml of chloroform, the volume is

    Text Solution

    |

  10. The melting point of most of the solid substances increases with an in...

    Text Solution

    |

  11. Two solutions of KNO(3) and CH(3)COOH are prepared separately. The mol...

    Text Solution

    |

  12. The osmotic pressure of blood is 7.65atm.at310KAn aqueous solution of ...

    Text Solution

    |

  13. A solution of 1.25g of a certain non-volatile substance in 20g of wate...

    Text Solution

    |

  14. The vapour pressure of benzene at 90^(@)C is 1020 torr. A solution of ...

    Text Solution

    |

  15. The vapour pressure of benzene at80^(@)C is lowered by 10mm by dissovi...

    Text Solution

    |

  16. The vapoure pressure of most substances increases with temperature as ...

    Text Solution

    |

  17. The freezing point of aqueous solution that contains 5% by mass urea. ...

    Text Solution

    |

  18. The freezing point of 0.1 M solution of glucose is -1.86^(@)C. If an e...

    Text Solution

    |

  19. An aqueous solution of glucose boils at 100.01^(@)C.The molal elevatio...

    Text Solution

    |

  20. The vapoure pressure of ethanol are 44.5 mm and 88.7 mm Hg respectivel...

    Text Solution

    |