Home
Class 11
PHYSICS
Mean free path of a gas molecule is...

Mean free path of a gas molecule is

A

Inversely proportional to number of molecules per unit volume

B

Inversely proportional to diameter of the molecule

C

Directly proportional to the square root of the absolute temperature

D

Directly proportional to the molecular mass

Text Solution

Verified by Experts

The correct Answer is:
A

Mean free path, `lambda=(1)/(sqrt2 pi d^2n), d rarr` density
`n rarr` no. of molecule per unit volume.
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Degree of Freedom and Specific Heat)|30 Videos
  • KINETIC THEORY OF GASES

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Pressure and Energy)|31 Videos
  • KINETIC THEORY OF GASES

    ERRORLESS|Exercise ASSERTION AND REASON |16 Videos
  • GRAVITATION

    ERRORLESS|Exercise Assertion and Reason |25 Videos
  • MOTION IN ONE DIMENSION

    ERRORLESS|Exercise ASSERTION AND REASON|24 Videos

Similar Questions

Explore conceptually related problems

Mean free path of a gas molecule in a container depends upon

Mean free path of a gas molecule increases with increase in

Mean free path of a gas molecule increases with decreases in

If the pressure of a gas is doubled and the temperature is tripled, by how much will the mean free path of a gas molecule in a vessel change?

By now much will the mean free path of a gas molecule in a vessel at constant T change if the pressure is reduced by 10% ?

mean free path of a gas molecule increases with decrease in

What is meant by mean free path of a gas molecule ? Derive an expression for it .

Mean free path of a gas molecule _________ proportional to the mass of gas molecule and ________ proportional to the square of the molecular diameter.

Assertion : Mean free path of a gas molecule varies inversely as density of the gas. Reason : Mean free path varies inversely as pressure of the gas.

The mean free path of a gas molecule at 27^(@)C is 2 cm. If the rms velocity of the gas at that temperature is 10m//s , what is the time interval between two successive collisions?

ERRORLESS-KINETIC THEORY OF GASES -NCERT BASED QUESTIONS (Speed of Gas)
  1. At what temperature is the root mean square velocity of gaseous hydro...

    Text Solution

    |

  2. At room temperature the rms speed of the molecules of a certain diatom...

    Text Solution

    |

  3. If the ratio of vapour density for hydrogen and oxygen is 1/(16), then...

    Text Solution

    |

  4. At a given temperature the root mean square velocities of oxygen and h...

    Text Solution

    |

  5. The temperature of an ideal gas is increased from 27^(@)C to 127^(@)C,...

    Text Solution

    |

  6. If VH, VN and VO represent "rms" speeds of the molecules of hydrogen,N...

    Text Solution

    |

  7. If the oxygen (O2) has root mean square velocity of C ms^(-1) then roo...

    Text Solution

    |

  8. The rms speed of the molecules of a gas in a vessel is 400ms^(-1). If ...

    Text Solution

    |

  9. The rms speed of oxygen molecules in a gas is v. If the temperature is...

    Text Solution

    |

  10. The root mean square speed of the molecules of a diatomic gas is v. Wh...

    Text Solution

    |

  11. The curve between absolute temperature and v(rms)^(2) is

    Text Solution

    |

  12. The root mean square velocity of the molecules in a sample of helium i...

    Text Solution

    |

  13. Speed of sound in a gas is v and rms velocity of the gas molecules is ...

    Text Solution

    |

  14. The root mean square speed of hydrogen molecule at 300 K is 1930m/s. T...

    Text Solution

    |

  15. Let A and B the two gases and given: (T(A))/(M(A))=4.(T(B))/(M(B)), w...

    Text Solution

    |

  16. In the two vessels of same volume, atomic hydrogen and helium at press...

    Text Solution

    |

  17. A vessel is partitioned in two equal halves by a fixed diathermic sepa...

    Text Solution

    |

  18. Mean free path of a gas molecule is

    Text Solution

    |

  19. The mean free path of molecules of a gas (radius r) is inversely propo...

    Text Solution

    |

  20. The average distance between molecules of an ideal gas at STP is appro...

    Text Solution

    |