Home
Class 11
PHYSICS
If the pressure in a closed vessel is re...

If the pressure in a closed vessel is reduced by drawing out some , the mean free path of the molecules :

A

is increased

B

is decreased

C

increases or decreases according to the nature of gas

D

remains unchanged

Text Solution

Verified by Experts

The correct Answer is:
A
If pressure of the gas is reduced, then the frequency of collision of a molecule will decrease due to the decrease in the number of molecules per unit volume and the mean free path will increase.
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (III. Short Answer Questions.)|16 Videos

  • KINETIC THEORY OF GASES

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (IV. Long Answer Questions.)|6 Videos

  • KINETIC THEORY OF GASES

    PREMIERS PUBLISHERS|Exercise TEXTBOOK QUESTIONS & ANSWERS (III. Long Answer Questions.)|16 Videos

  • KINEMATICS

    PREMIERS PUBLISHERS|Exercise Other important questions & answers (V. Numerical problems).|166 Videos

  • LAW OF MOTION

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (VI Numerical Problems)|62 Videos
PREMIERS PUBLISHERS-KINETIC THEORY OF GASES-OTHER IMPORTANT QUESTIONS & ANSWERS (I. Multiple Choice Questions.)
  1. Select the incorrect statement from the following statements.

    Text Solution

    |

  2. The ratio of the specific heats CP/CV = gamma in terms of degrees of f...

    Text Solution

    |

  3. If the pressure in a closed vessel is reduced by drawing out some , th...

    Text Solution

    |

  4. If gamma=CP/CV for a gas and R is universal gas constant then select ...

    Text Solution

    |

  5. According to kinetic theory of gases, molecules of a gas behave like .

    Text Solution

    |

  6. A gas behaves as an ideal gas at :

    Text Solution

    |

  7. Select the correct pair from the following parameters.

    Text Solution

    |

  8. The mean translational kinetic energy of a perfect gas molecule at the...

    Text Solution

    |

  9. The ratio of rotational kinetic energy to the total kinetic energy of ...

    Text Solution

    |

  10. Which one of the following is not an assumption of kinetic theory of g...

    Text Solution

    |

  11. At 0 K, which of the following properties of a gas will be zero ?

    Text Solution

    |

  12. Match the parameters given in column I with the expressions given in c...

    Text Solution

    |

  13. Two gases A and B having same pressure P, volume V , and Temperature T...

    Text Solution

    |

  14. The adjoining figure shows graph of pressure and volume of a gas at tw...

    Text Solution

    |

  15. At a given temperature , the ratio of kinetic energies of 3 g of hydro...

    Text Solution

    |

  16. Which of the following graphs represent the behaviour of an ideal gas ...

    Text Solution

    |

  17. Assertion : For an ideal gas, at constant temperature, the product of...

    Text Solution

    |

  18. A gas with specific heat ratio gamma = 5/3 is compressed suddenly to 1...

    Text Solution

    |

  19. A gas mixture consists of 2 moles of O2 and 4 moles of Ar at temperatu...

    Text Solution

    |

  20. An ideal gas with pressure P, volume V and temperature T is expanded i...

    Text Solution

    |