Home
Class 12
CHEMISTRY
The vapour pressure of water at room tem...

The vapour pressure of water at room temperature is 30 mm of Hg. If the mole fraction of the water is 0.9, the vapour pressure of the solution will be :

A

30 mm of Hg

B

2 4 mm of Hg

C

21 mm of Hg

D

27 mm of Hg

Text Solution

Verified by Experts

The correct Answer is:
D

`X= 0.9 xx 30`
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS AND COLLIGATIVE PROPERTIES

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|45 Videos
  • SOLID STATE

    MARVEL PUBLICATION|Exercise TEST YOUR GRASP|30 Videos

Similar Questions

Explore conceptually related problems

The vapour pressure of water at room temperature is 30 mm of Hg. If the mole fraction of water in a solution of non volatile solute is 0.9, the vapour pressure of the solution will be :-

The vapour pressure of acetone at 298 K is 40 mm of Hg . Its mole fraction in a solution with alcohol is 0.80 . What is its vapour pressure in solution if the mixture obey Raoult's law?

A mixture of ethyl alcohol and propylalcohol has a vapour pressure of 290 mm at 300 K. The vapour pressure of propylalcohol is 200 mm. If the mole fraction of ehtyl is 0.6, its vapour pressure (in mm) at same temperature will be:

The vapour pressure of water at room temperature is 23.8 mm Hg. The vapour pressure of an aqueous solution of sucrose with mole fraction 0.1 is equal to :

The vapour pressure of water at room temperature is 23.8 mm Hg. The vapour pressure of an aqueous solution of sucrose with mole fraction 0.1 is equal to

The vapour pressure of ethyl alcohol at 298 K is 40 mm of Hg. Its mole fraction in a solution with methyl alcohol is 0.80. What its vapour pressure in solution if the mixture obeys Raoult's law ?

Vapour pressure of water at 20^(@)C is 17.5 mm of Hg and lowering of vapour pressure of a sugar solution is 0.061 mm of Hg. Calculate . (i) relative lowering of vapour pressure . (ii) vapour pressure of the solution . (iii) mole fraction of sugar and water .

The vapour pressure of pure solvent is 0.8 mm of Hg at a particular temperature. On addition of a non-volatile solute ‘A’ the vapour pressure of solution becomes 0.6 mm of Hg. The mole fraction of component ‘A’ is:

The vapour pressure of water at 23^(@)C is 19.8 mm of Hg 0.1 mol of glucose is dissolved in 178.2g of water. What is the vapour pressure (in mm Hg) of the resultant solution?

MARVEL PUBLICATION-SOLUTIONS AND COLLIGATIVE PROPERTIES-TEST YOUR GRASP
  1. The vapour pressure of water at room temperature is 30 mm of Hg. If th...

    Text Solution

    |

  2. Ideal solution is formed when its components

    Text Solution

    |

  3. Pressure cooker reduces cooking time because :

    Text Solution

    |

  4. Which of the following 0.1 M aqueous solutions will exert highest osmo...

    Text Solution

    |

  5. In which mode of expression, the concentration of a solution remains i...

    Text Solution

    |

  6. If 18 g of glucose is present in 1000 g of solvent, the solution is sa...

    Text Solution

    |

  7. Partial pressure of solvent in solution of non-volatile solute is give...

    Text Solution

    |

  8. Relative lowering of vapour pressure

    Text Solution

    |

  9. A solution of CaCl(2) is 0.5 mol/litre , then the moles of chloride io...

    Text Solution

    |

  10. How much volume of 3.0 M H(2)SO(4) is required for the preparation of ...

    Text Solution

    |

  11. Which of the following is a colligative property ?

    Text Solution

    |

  12. Molal elevation constant is elevation in boiling point produced by

    Text Solution

    |

  13. The vapour pressure of a solution having solid as solute and liquid as...

    Text Solution

    |

  14. The determination of molar mass from elevation in boiling point is cal...

    Text Solution

    |

  15. The semipermeable membrane used in Berkely -Hartley method is

    Text Solution

    |

  16. 1 mole heptane (V.P = 92 mm of Hg) is mixed with 4 mol. Octane (V.P = ...

    Text Solution

    |

  17. The vapour pressure of water at room temperature is 30 mm of Hg. If th...

    Text Solution

    |

  18. The values of gas constant and solution constant

    Text Solution

    |

  19. When a non volatile solute is dissolved in a solvent, the relative low...

    Text Solution

    |

  20. Isotonic solutions have :

    Text Solution

    |

  21. If 23 g of glucose ( molecular mass 180)is dissolved in 60ml of water ...

    Text Solution

    |