Home
Class 11
PHYSICS
If at the same temperature and pressure,...

If at the same temperature and pressure, the densities of two diatomic gases are `d_(1)` and `d_(2)` respectively. The ratio of mean kinetic energy permolecule of gasses will be

A

`1:1`

B

`d_(1):d_(2)`

C

`sqrt(d_(1)):sqrt(d_(2))`

D

`sqrt(d_(2)):sqrt(d_(1))`

Text Solution

Verified by Experts

The correct Answer is:
A
At a given temperature (T) all the idela gas mlecules no matter what their masses have the same average translational kinetic energy.
`i.e.," "E=3/2kT`
So, E does not depend upon density (as mass = pV)
`" " (E_(1))/(E_(2))=1:1`
Promotional Banner

Topper's Solved these Questions

  • THERMOMETRY THERMAL EXPANSION AND KINETIC THEORY OF GASES

    DC PANDEY|Exercise Check point 14.4|25 Videos

  • THERMOMETRY THERMAL EXPANSION AND KINETIC THEORY OF GASES

    DC PANDEY|Exercise A Tacking it together|55 Videos

  • THERMOMETRY THERMAL EXPANSION AND KINETIC THEORY OF GASES

    DC PANDEY|Exercise Check point 14.2|20 Videos

  • SUPERPOSITION OF WAVES

    DC PANDEY|Exercise Level 2 Subjective|8 Videos

  • THERMOMETRY,THERMAL EXPANSION & KINETIC THEORY OF GASES

    DC PANDEY|Exercise Level 2 Subjective|9 Videos

Similar Questions

Explore conceptually related problems

If at same temperature and pressure, the densities for two diatomic gases are respectively d_(1) and d_(2) , then the ratio of velocities of sound in these gases will be

At a given temperature, ratio of root mean square velocities of two different gases of molecular weights M_(1) and M_(2) respectively is

Two monoatomic gases are at absolute temperatures 300 K and 350 K respectively. Ratio of average kinetic energy of their molecules is

Two planets have radii r_(1) and r_(2) and densities d_(1) and d_(2) respectively. Then the ratio of acceleration due to gravity on them is

Masses of two substances are 1 g and 9 g respectively. If their kinetic energies are same, then the ratio of their momentum will be

At the same temperature and pressure, which of the following will have same kinetic energy per mole as N_(2)O ?

The densities of two gases are in the ratio of 1 : 16 . The ratio of their rates of diffusion is

DC PANDEY-THERMOMETRY THERMAL EXPANSION AND KINETIC THEORY OF GASES-Check point 14.3
  1. Which one of the following is not an assumption in the kinetic theory ...

    Text Solution

    |

  2. A closed vessel is maintained at a constant temperture. It is first ev...

    Text Solution

    |

  3. The average speedof lulecules in a gas is given by

    Text Solution

    |

  4. For gas at a temperature T the root-mean-square speed v(rms), the most...

    Text Solution

    |

  5. The average kinetic enrergy of a gas molecule is

    Text Solution

    |

  6. KE per unit volume is E. The pressure exerted by the gas is given by

    Text Solution

    |

  7. If at the same temperature and pressure, the densities of two diatomic...

    Text Solution

    |

  8. Two vessels A and B having equal volume contain equal masses of hydrog...

    Text Solution

    |

  9. A vessel contains 1 mole of O(2) gas (molar mass 32) at a temperature ...

    Text Solution

    |

  10. What will be the temperature when the rms velocity is double of that a...

    Text Solution

    |

  11. By what factor the rms velocity will change, if the temperature s rais...

    Text Solution

    |

  12. The velocities of three molecules are 3v, 4v and 5v. Calculate their r...

    Text Solution

    |

  13. The temperature at which the root mean squres speed of a gas will be h...

    Text Solution

    |

  14. Four molecules of ags have speeds 1,2,3 and 4 km//s.The volue of the r...

    Text Solution

    |

  15. A sealed container with negiligible coefficient of volumetric expansio...

    Text Solution

    |

  16. The gases carbon-monoxide (CO) and nitrogen at the same temperature ha...

    Text Solution

    |

  17. Pressure of an ideal gas is increased by keeping temperature constant....

    Text Solution

    |

  18. Some gas at 300K is enclosed in a container. Now the container is plac...

    Text Solution

    |

  19. The root-mean-square (rms) speed of oxygen molecules (O(2)) at a certa...

    Text Solution

    |

  20. The molecules of a given mass of a gas have rms velocity of 200 m//s a...

    Text Solution

    |