Home
Class 11
CHEMISTRY
Find an expression for the rotational ki...

Find an expression for the rotational kinetic energy of a body.

A

480 J

B

240 J

C

120 J

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
b
(b) `200=sqrt((2RT)/(2xx10^(-3))=RT=40`
`"Average K.E."=(3)/(2)nRT=(3)/(2)xx(8)/(2)xx40`
`=240J`
Promotional Banner

Topper's Solved these Questions

  • GASEOUS STATE

    NARENDRA AWASTHI|Exercise Level 1 (Q.151 To Q.176)|1 Videos

  • GASEOUS STATE

    NARENDRA AWASTHI|Exercise Level 2|1 Videos

  • GASEOUS STATE

    NARENDRA AWASTHI|Exercise Level 1 (Q.121 To Q.150)|1 Videos

  • ELECTROCHEMISTRY

    NARENDRA AWASTHI|Exercise Level 3 - Subjective Problems|1 Videos

  • IONIC EEQUILIBRIUM

    NARENDRA AWASTHI|Exercise Assertin-Reason Type Questions|1 Videos

Similar Questions

Explore conceptually related problems

Define kinetic energy?

A body of mass 20g is rotating around a pole 50 cm away with a frequency 5 r.p.s.Find the rotational kinetic energy of the body.

Write an expression for the kinetic energy of an object.

Define potential enrgy of a body .Find an expression for the potential energy of a stretched spring.

Write an expression for the kinetic energy of a gas molecule .

Find an expression for the total energy of a liquid.

NARENDRA AWASTHI-GASEOUS STATE-Exercise
  1. The root mean square speed of hydrogen is sqrt(5) times than that of n...

    Text Solution

    |

  2. At a definit temperature (T), the distribution of speeds is given by t...

    Text Solution

    |

  3. Find an expression for the rotational kinetic energy of a body.

    Text Solution

    |

  4. At what temperature will most probable speed of the molecules of the s...

    Text Solution

    |

  5. Addition of 0.643g of a compound to 43.95g of benzene lowers the freez...

    Text Solution

    |

  6. 6xx10^(22) gas molecules each of mass 10^(-24)kg are taken in a vessel...

    Text Solution

    |

  7. At what temperature will the speed of sound in air become double of it...

    Text Solution

    |

  8. The most probable speed of 8 g of H(2) is 200 ms^(-1). Average kinetic...

    Text Solution

    |

  9. Consider the following statement regarding Maxwell's distribution of s...

    Text Solution

    |

  10. The density of a gas filled in electric lamp is 0.75kg//m^(3) . After ...

    Text Solution

    |

  11. Define root mean square value of an alternating current.

    Text Solution

    |

  12. The ratio among most probable velocity, mean velocity and root mean ve...

    Text Solution

    |

  13. The average speed at temperature T^(@)C of CH(4)(g) is sqrt((28)/(88))...

    Text Solution

    |

  14. At what temperature will most probable speed of the molecules of the s...

    Text Solution

    |

  15. The rms speed of N(2) molecules in a gas in u. If the temperature is d...

    Text Solution

    |

  16. The rate of diffusion of a gas is proportional to

    Text Solution

    |

  17. At constant volume and temperature conditions, the rates of diffusion ...

    Text Solution

    |

  18. What is the ratio of diffusion rate of oxygen to hydrogen?

    Text Solution

    |

  19. The molecular weight of a gas which diffuses through a porous plug at...

    Text Solution

    |

  20. X mL of H(2) gas effuses through a hole in a container in 5 s. The tim...

    Text Solution

    |