Home
Class 12
CHEMISTRY
Vapour pressure of a solution of heptane...

Vapour pressure of a solution of heptane and octane is given by the equation:
p(sol.)(mm Hg)=35+65x, where x is the mole fraction of heptane. vapour pressure of pure heptane is

A

100 mm Hg

B

35 mm Hg

C

30 mm Hg

D

1.86 mm Hg

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    MODERN PUBLICATION|Exercise EXERCISE|635 Videos

  • SOLID STATE

    MODERN PUBLICATION|Exercise EXERCISE|525 Videos

  • STRUCTURE OF ATOM

    MODERN PUBLICATION|Exercise EXERCISE|102 Videos

Similar Questions

Explore conceptually related problems

Why the vapour pressure of a solution of glucose in water is lower than of pure water

P_A and P_B are the vapour pressure of pure liquid components A and B respectively of an ideal binary solution. If X_A represent the mole fraction of component A, then the total pressure of the solution will be

Two liquids X and Y on mixing form an ideal solution. The vapour pressure of the solution containing 3 mol of X and 1 mole of Y is 550 mm of Hg. But when 4 mol of X and 1 mol of Y are mixed, the vapour pressure of the solution thus, formed is 560 mm of Hg. what will be the vapour pressure of the pure X and pure Y at this temperature?

Why the vapour pressure of saline solutions is lower than that of pure water ?

Vapour pessure of a liquid or a solution is the pressure exerted by the vapour in equilibrium with the liquid or solution at a particular temperature. It depends upon the nature of the liquid and temperature. It depends upon the nature of the liquid and temperature. According to Raoult's law in a solution, the vapour pressure of a component at a given temperature is equal to the mole fraction of that component in solution multiplied by the vapour pressure of that component in hte pue state. this solution in which each component obeys Raoult's law are called ideal solutions. there are two types of non ideal solutions, showing positive deviations and negative deviations from ideal behaviour. If liquid A and B form ideal solution, then

Benzene and toluene form ideal solution over the entire range of composition. The vapour pressure of pure benzene and toluene at 300 K are 50.71 mm Hg and 32.06 mm Hg respectively. Calculate the mole fraction of benzene in vapour phase if 80 g of benzene is mixed with 100 g of toluene.

1.0 gram of a non-volatile solute was dissolved in 100 gram of acetone (molecular mass = 58) at 298 K. The vapour pressure of solution was found to be 192.5 mm of Hg. Calculate the molecular mass of solute. The vapour pressure of pure acetone at 298 K is 195 mm of Hg.

The vapour pressure of a 5% aqueous solution of a non-volatile organic substances at 373K is 745 mm. calculate the molar mass of the solute. (Vapour pressure of water at 373K=760mm Hg).

The vapour pressure of two pure liquids A and B are 50 and 40 torr respectively. If 8 molrs of A is mixed with x moles of B , then vapour pressure of solution obtained is 48 torr. What is the value of x.

MODERN PUBLICATION-SOLUTIONS -EXERCISE
  1. Vapour pessure of a liquid or a solution is the pressure exerted by th...

    Text Solution

    |

  2. Explain the following terms- Communicable diseases?

    Text Solution

    |

  3. Vapour pressure of a solution of heptane and octane is given by the eq...

    Text Solution

    |

  4. Vapour pessure of a liquid or a solution is the pressure exerted by th...

    Text Solution

    |

  5. A solution of glucose has been prepared at 298K dissolving 7.2 g of gl...

    Text Solution

    |

  6. A solution of glucose has been prepared at 298K dissolving 7.2 g of gl...

    Text Solution

    |

  7. A solution of glucose has been prepared at 298K dissolving 7.2 g of gl...

    Text Solution

    |

  8. A solution of glucose has been prepared at 298K dissolving 7.2 g of gl...

    Text Solution

    |

  9. Electrolyte A gives 4 ions and B is a non electrolyte. if 0.1 molar so...

    Text Solution

    |

  10. 0.2 m aqueous solution of a weak acid is 20% dissociated. The boiling ...

    Text Solution

    |

  11. Which of the following equimolar solution is expected to have lowest f...

    Text Solution

    |

  12. The elevation of boiling point for 1M urea, 1M glucose, 1M NaCl and 1M...

    Text Solution

    |

  13. The average osmotic pressure of human blood is 7.8 bar at 37^@C. the c...

    Text Solution

    |

  14. What are colligative properties? Explain the following colligative pro...

    Text Solution

    |

  15. Fill in the blanks- is used for making pizza and bread.

    Text Solution

    |

  16. Properties such as boiling point, freezing point and vapour pressure o...

    Text Solution

    |

  17. Assertion: DeltaH(mix) and DeltaV(mix) are zero for the ideal solution...

    Text Solution

    |

  18. Assertion: Increasing pressure on water decreases its freezing point R...

    Text Solution

    |

  19. Assertion: 0.1 M glucose solution has higher increment in the freezing...

    Text Solution

    |

  20. The questions given below consist of an Assertion and Reason. Use the ...

    Text Solution

    |