Home
Class 12
PHYSICS
An electron tube was sealed off during m...

An electron tube was sealed off during manufacture at a pressure of `1.2xx10^(-7)` mm of mercury at `27^(@)C.` Its volume is 100 `cm^(3)`. The number of molecules that remain in the tube is

Text Solution

Verified by Experts

`3.814xx10^(11)`
Promotional Banner

Topper's Solved these Questions

  • Kinetic Theory of Gases and Gas Laws

    PHYSICS GALAXY - ASHISH ARORA|Exercise Advance MCQs with One or More Options Correct|15 Videos

  • HEAT TRANSFER

    PHYSICS GALAXY - ASHISH ARORA|Exercise Unsolved Numerical Problems for Preparation of NSEP,INPhO&IPhO|66 Videos

  • MAGNETIC EFFECTS OF CURRENT AND MAGNETISM

    PHYSICS GALAXY - ASHISH ARORA|Exercise U.N.P|79 Videos

Similar Questions

Explore conceptually related problems

An electric bulb of volume 250cc was sealed during manufacturing at a pressure of 10^(-3) mm of mercury at 27^(@) C. Compute the number of air molecules contained in the bulb.Avogadro constant =6xx10^(23)mol^(-1), density of mercury =13600kgm^(-3)and g=10ms^(-2) .

An electric bulb of volume 250 cm^(3) was sealed off during manufacture at a pressure of 10^(-3) mm of Hg at 27^(@) C . Find the number of molecules in the bulb. Given, Boltzmann constant =1.38 xx 10^(-16) "erg molecule"^(-1) ^(@)C^(-1) .

The volume of a gas at pressure 1.2 xx 10^(7) Nm^(-2) and temperature 127^(@)C is 2.0 litre. Find the number of molecules in the gas.

The volume of a gas in discharge tube is 1.12 xx 10^(-7) ml, at 0^(@)C and 1 atm. The number of molecule of gas in the tube is-

A lamp of voume 50 cc was sealed off during manufacture at a pressure 0.1 newton per square metre at 27^(@)C . Calculate the mass of the gas enclosed in the lamp. Molecular weight of the gas =10 and R=8.3Jmol^(-1)K^(-1)

An electric bulb of volume 300 cm^(3) is sealed at temperature 300 K and pressure 10^(-4) mm of mercury. Find the number of air molecules in the bulb. (Given, sigma=13.6xx10^(3)kgm^(-3) and k_(B)=1.38xx10^(-23)jK^(-1) )

Find the number of molecules in 1cm^(3) of an ideal gas at o^(@) and at a pressure of 10^(-5)mm of mercury.

PHYSICS GALAXY - ASHISH ARORA-Kinetic Theory of Gases and Gas Laws-Unsolved Numerical Problems for Preparation of NSEP, INPhO & IPhO
  1. An electron tube was sealed off during manufacture at a pressure of 1....

    Text Solution

    |

  2. The mass of hydrogen molecule is 3.23 xx 10^(-27)Kg. If 10^23 hydrogen...

    Text Solution

    |

  3. A lamp of voume 50 cc was sealed off during manufacture at a pressure ...

    Text Solution

    |

  4. An electric bulb of volume 250 cm^(3) was sealed off during manufactur...

    Text Solution

    |

  5. Calculate the kinetic energy of translation of the molecules of 20g of...

    Text Solution

    |

  6. A cubic box of volume 8.0xx10^(-3)m^(3) is filled with air at atmosphe...

    Text Solution

    |

  7. Calculate the number of molecules/m^(3) in an ideal gas at STP.

    Text Solution

    |

  8. The lowest pressure attainable using the best available vacuum techniq...

    Text Solution

    |

  9. In outer space the density of matter is about one atom per cm^(3), mai...

    Text Solution

    |

  10. Calculate the density of oxygen at STP using the ideal gas law.

    Text Solution

    |

  11. A tank contains 28.0 kg of O(2) gas at a gauge pressure of 6.80 atm. I...

    Text Solution

    |

  12. A house has a volume of 600 m^(3). What is the total mass of air ins...

    Text Solution

    |

  13. A house has a volume of 600 m^(3). If the temperature rises to 25^(@...

    Text Solution

    |

  14. A tire is filled with air at 15^(@)C to a gauge pressure of 1.9xx10^(5...

    Text Solution

    |

  15. An electric bulb of volume 250 cm^(3) was sealed off during manufactur...

    Text Solution

    |

  16. A column of mercury of 10cm length is contained in the middle of a nar...

    Text Solution

    |

  17. Two cylinder having m(1)g and m(2)g of a gas at pressure P(1) and P(2...

    Text Solution

    |

  18. In a toy truck the volume of its tyre tube is 2000 cm^(3) in which air...

    Text Solution

    |

  19. Show that the volume thermal expansion coefficient for an ideal gas at...

    Text Solution

    |

  20. The temperature of a room of volume Vrise from T(1) to T(2). How much ...

    Text Solution

    |