Home
Class 11
PHYSICS
Four molecules of ags have speeds 1,2,3 ...

Four molecules of ags have speeds 1,2,3 and 4 `km//s`.The volue of the root mean square speed of the gas molecules is

A

`1/2sqrt15kms^(-1)`

B

`1/2sqrt10kms^(-1)`

C

`2.5kms^(-1)`

D

`sqrt(15//2)kms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
D
`v_(rms)=sqrt(((1)^(2)+(2)^(2)+(3)^(2)+(4)^(2))/4)=sqrt(15/2)kms^(-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

The root mean square speed of gas molecules

Five molecules of a gas have speeds 1, 1, 3, 3, 2 km/s the value of the r.m.s spreed of the gas molecules is

Four molecules of a gas have speed 1, 2, 3 and 4 km s^(-1) respectively. The value of rms speed of the molecules is (in km s^(-1) )

Calculate the root mean square speed of hydrogen molecule at STP

Calculate the root mean square speed of methane molecules at 27^(@)C .

Four molecule of a gas are having speeds of 1, 4, 8 and 16 ms^(-1) . The root mean square velocity of the gas molecules is

Five molecules of a gas moving with speeds 1,2,3,4,5km/s .What is their root mean square speed?

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

    |