Home
Class 12
CHEMISTRY
A liquid is in equilibrium with its vapo...

A liquid is in equilibrium with its vapour at its boiling point. On the average, the molecules in the two phases have equal.

A

potential energy

B

kinetic energy

C

total energy

D

intermolecular forces

Text Solution

Verified by Experts

The correct Answer is:
B
Hint : At equilibrium, the rate of evaporation is equal to that of condensation, so they have same kinetic energies.
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    ACCURATE PUBLICATION|Exercise 1 MARK QUESTION |40 Videos

  • SOLUTIONS

    ACCURATE PUBLICATION|Exercise 3 MARK QUESTION |23 Videos

  • P-BLOCK ELEMENTS

    ACCURATE PUBLICATION|Exercise P-BLOCK ELEMENTS GROUP-18 (NOBLE GASES )(2 OR 5 MARK QUESTIONS)|17 Videos

  • SOLVED SAMPLE PAPER, MARCH - 2021

    ACCURATE PUBLICATION|Exercise SECTION -D |16 Videos

Similar Questions

Explore conceptually related problems

A liquid is equilibrium with its vapours in a sealed container at a fixed temperature. The volume of the container suddenly increased. What is the initial effect of the change on vapour pressure ?

A liquid is equilibrium with its vapours in a sealed container at a fixed temperature. The volume of the container suddenly increased. What happens when equilibrium is restored finally and what will be the final vapour pressure.

A liquid is equilibrium with its vapours in a sealed container at a fixed temperature. The volume of the container suddenly increased. How do rates of evaporations and condensation changes initially ?

Why does water have high boiling point?

How does a liquid change into vapour without boiling ?

Give two requirements for vapour phase refining.

Alcohols have higher boiling point than alkanes.Why ?

Which of the following change is observed occurs when a substance X is converted from liquid to vapour phase at the standard boiling point? I. Potential energy of the system decreases II. The distance between molecules increases III.The average kinetic energy of the molecules in both phases are equal

ACCURATE PUBLICATION-SOLUTIONS -NUMERICAL QUESTIONS (3 MARKS)
  1. A liquid is in equilibrium with its vapour at its boiling point. On th...

    Text Solution

    |

  2. Commercially available sample of sulphuric acid is 15% H2SO4 by weight...

    Text Solution

    |

  3. Concentrated H(2)SO(4) has a density 1 . 9 g/mL and is 99% H(2) SO(4)...

    Text Solution

    |

  4. Calculate the mass of a non-volatile solute (molar mass 40 g mol^(-1))...

    Text Solution

    |

  5. 18 g of glucose is dissolved in 1 kg of water. At what temperature wil...

    Text Solution

    |

  6. How many grams of ethylene glycol (molar mass = 62) should be added to...

    Text Solution

    |

  7. Benzene and toluene form nearly ideal solution . At 313 K the vapou...

    Text Solution

    |

  8. At 298 K the vapour pressure of pure benzene C(6) H(6) is 0.256 bar...

    Text Solution

    |

  9. 200 cm^3 of an aqueous solution of a protein contains 1.26g of the pro...

    Text Solution

    |

  10. 4 . 0 g of NaOH are contained in one decilitre of a solution. Calcula...

    Text Solution

    |

  11. In winter, the normal temperature in Dharmshala is - 8^(@) C Is a 30%...

    Text Solution

    |

  12. Calculate mole fraction of ethanol and water in a sample of rectified ...

    Text Solution

    |

  13. 19.5 g of CH2FCOOH is dissolved in 500 g of water. The depression in t...

    Text Solution

    |

  14. 4 . 0 g of NaOH are contained in one decilitre of a solution. Calcula...

    Text Solution

    |

  15. At some temperature the vapour pressure of pure benzene, C(6) H(6) is ...

    Text Solution

    |

  16. Vapour pressure of chlolfom (CHCI(3)) and dichloromethane (CH(2) CI(2...

    Text Solution

    |

  17. The density of 10% by mass of KCI solution in water is 1 . 0 6 g mL^...

    Text Solution

    |

  18. The vapour pressure of ethanol (C(6)H(5) OH) and methanol (CH(3) OH)...

    Text Solution

    |

  19. Addition of 0.643g of a compound to 43.95g of benzene lowers the freez...

    Text Solution

    |

  20. 18 g of a compound is dissolved in 10 kg of water so that the resu...

    Text Solution

    |

  21. 35 g of compound is added in 1 kg of water so that the resulting sol...

    Text Solution

    |