Home
Class 12
CHEMISTRY
At 100^@C vapour pressure of heptane and...

At `100^@C` vapour pressure of heptane and octane are respectively 105.2 and 46.8 kPa. Calculate the vapour pressure of 60 grams of the mixture of two liquids, in which the mass of octane is 35g.

Text Solution

Verified by Experts

The correct Answer is:
73 k Pa
Promotional Banner

Topper's Solved these Questions

  • DILUTE SOLUTIONS

    AAKASH SERIES|Exercise EXERCISE - 1.1.4|18 Videos
  • D-BLOCK ELEMENTS

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE-4 (ASSERTION (A) & REASON (R) TYPE QUESTIONS )|69 Videos
  • ELECTROCHEMISTRY

    AAKASH SERIES|Exercise PRACTICE EXERCISE|55 Videos

Similar Questions

Explore conceptually related problems

Vapour pressure of beneze and toluene are 160 are 60 torr. What will be the vapour pressure of a mixture of equal masses of benezene and toluene.

Heptane and Octane form an ideal solution. At 373 K the vapour pressure of the two liquid components are 105.2" kP"_(a) and 46.8" kP"_(a) respectively. What will be the vapour pressure of a mixture of 26.0 g heptane and 35g of octane ?

Vapour pressure of pure water at 23^@C is 19.8 torr . Calculate the vapour of 3m aqueous solution.

Vapour pressure of pure water at 298 k is 23.8 mm Hg. Calculate the lowering of vapour pressure caused by adding 5g of sucrose in 50 g of water.

Vapour pressures of para xylene and methylbenezene at 90^@C are respectivley 150 mm and 400 mm. Calculate the mole fraction of dimethyl benzene in the mixture that boils at 90^@C , when the pressure is 0.5 atm.

The vapour pressures of benzene at 303k and 333k are respectively 1.53 xx10^(4) and 5.2xx10^(4)Nm^(-2) Calculate the latent heat of evaporation of benzene over this temperature.

100g of liquid A(molar mass 140"g mol"^(-1) ) was dissolved in 1000g of liquid B(molar mass 180"g mol"^(-1) ). The vapour pressure of pure liquid B was found to be 500 torr. Calculate the vapour pressure of pure liquid A and its vapour pressure in the solution if the total vapour pressure of the solution is 475 torr.

At 70^@C vapour pressure of pure benezene and pure toluene are 500 torr and 200 torr, respectively. In a homogeneous mixture of toluene with benzene at 70^@C , the mole fraction of benezene is 0.4. Calculate the vapour pressure of the mixture.

AAKASH SERIES-DILUTE SOLUTIONS-EXERCISE - 1.2
  1. What is the vapour pressure of one molal glucose solution at 100^(@)C ...

    Text Solution

    |

  2. Vapour pressure of water at certain temperature is 155 mm Hg and that ...

    Text Solution

    |

  3. At 100^@C vapour pressure of heptane and octane are respectively 105.2...

    Text Solution

    |

  4. Vapour pressure of aqueous glucose at 373 K is 750 mm Hg. Calculate th...

    Text Solution

    |

  5. A mixture of two immiscible liquids water and nitrobeneze boiling at 3...

    Text Solution

    |

  6. State the law co-relating the pressure of a gas and its solubility in ...

    Text Solution

    |

  7. State the condition resulting in reverse osmosis.

    Text Solution

    |

  8. Define the following terms: (i) Ideal solution (ii) Azeotrope and (ii)...

    Text Solution

    |

  9. If 0.869 g of cholesterol is dissolved in 4.4 g of diethyl ether the v...

    Text Solution

    |

  10. Boiling point of 100 g water containing 12 g of glucose dissolved in 1...

    Text Solution

    |

  11. Calculate the cryscopic constant of a solvent, If its latent heat of f...

    Text Solution

    |

  12. Freezing point depression of millimolal KnFe(CN)(6) is 7.1 xx 10^(-3) ...

    Text Solution

    |

  13. A solution of urea has boiling point 100.15^@C, Kf and Kb for water ar...

    Text Solution

    |

  14. Compare the weigths of methanol and glycerol, which would be required ...

    Text Solution

    |

  15. At 0^@C , the vapour pressure of pure water is 4.63 mm and an aqueous ...

    Text Solution

    |

  16. 75.2g of phenol is dissoved in one kg of solvent of Kf value 14 K Kg m...

    Text Solution

    |

  17. Latent heat of fusion and vaporisation of water are respectively 80 an...

    Text Solution

    |

  18. A storage battery contais a solution of sulphuric acid 38% by weight a...

    Text Solution

    |

  19. 0.5% aqueous KCl has freezing point -0.24^@C. Calcualte the degree of ...

    Text Solution

    |

  20. A 10% solution of sucrose is iso-osmotic with 1.754% solution of X. If...

    Text Solution

    |