Home
Class 12
PHYSICS
Given molecular weight of hydrogen molec...

Given molecular weight of hydrogen molecule is `M = 2.016 xx 10^(-3) kg//mol`. Calculate the root-mean-square speed of hydrogen molecules `(H_(2))` at `373.15 K (100^(@) C)`.

A

`2.15 km//s`

B

` 3.25 km//s`

C

` 4.22 km//s`

D

` 1.25 km//s`

Text Solution

Verified by Experts

The correct Answer is:
A
` V_(r.m.s.) = sqrt((3RT)/(M))`
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY

    PHYSICS WALLAH|Exercise NEET PAST 5 YEARS QUESTIONS |11 Videos

  • KINETIC THEORY

    PHYSICS WALLAH|Exercise NEET PAST 5 YEARS QUESTIONS |11 Videos

  • GRAVITATION

    PHYSICS WALLAH|Exercise NEET Past 5 Years Questions|13 Videos

  • LAWS OF MOTION

    PHYSICS WALLAH|Exercise NEET PAST 5 YEARS QUESTIONS |12 Videos

Similar Questions

Explore conceptually related problems

Calculate the root mean square speed of hydrogen molecule at STP

Calucate the root mean square speed of hydrogen molecules at 373.15 K .

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

Calculate the root mean square speed of an oxygen molecule at 288 K in SI units.

The root mean square speed of hydrogen molecule at 300 K is 1930m/s. Then the root mean square speed of oxygen molecules at 900K will be………..

The average kinetic energy of a hydrogen molecule at 27^(@)C is 9.3 xx 10^(-21) J . The mass of hydrogen molecule is 3.1 xx 10^(-27) kg . (i) Determine the average kinetic en-ergy at 227^(@)C . (ii) Determine the root mean square speed of hydrogen molecule at 27^(@)C .

Calculate for hydrogen at 27^(@)C root mean square velocity of the molecules.

PHYSICS WALLAH-KINETIC THEORY -LEVEL- 2
  1. Consider the quantity (MkT)/(pV) of an ideal gas where M is the mass o...

    Text Solution

    |

  2. Find the ratio of the mean speed of hydrogen molecules to the mean spe...

    Text Solution

    |

  3. Given molecular weight of hydrogen molecule is M = 2.016 xx 10^(-3) kg...

    Text Solution

    |

  4. The pressure of an ideal gas is written as p=(2E)/(3V).Here E refers t...

    Text Solution

    |

  5. Which of the following quantities is the same for all ideal gases at t...

    Text Solution

    |

  6. Let Delta U1 and Delta U2 be the changes in energy of the system in ...

    Text Solution

    |

  7. In the following V - T diagram what is the relations between P1 and P...

    Text Solution

    |

  8. An ideal gas is allowed to expand freely against vacuum in a rigid in...

    Text Solution

    |

  9. A gas undergoes a process in which its pressure P and volume V are rel...

    Text Solution

    |

  10. V = k((P)/(T))^(0.33) where k is constant. It is an,

    Text Solution

    |

  11. The internal energy of one mole mono-atomic gas is

    Text Solution

    |

  12. 10 moles of an ideal monoatomic gas at 10^(@)C are mixed with 20 moles...

    Text Solution

    |

  13. During an adiabatic process. The pressure of a gas is to be proportion...

    Text Solution

    |

  14. The change in internal energy , when a gas is cooled from 927^(@) " t...

    Text Solution

    |

  15. A gas is formed of molecules each molecules possessing f degrees of fr...

    Text Solution

    |

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

    Text Solution

    |

  17. According to the law of equipartition of energy, the energy associated...

    Text Solution

    |

  18. Equations for an ideal gas is :

    Text Solution

    |

  19. Significance of a and b in vander - Waal's equations

    Text Solution

    |

  20. A real gas behaves like an ideal gas if its

    Text Solution

    |