Home
Class 12
PHYSICS
The internal energy of air in a room of ...

The internal energy of air in a room of volume `40 m^3` atstandard atmospheric pressure is

A

`10^7Joule`

B

`10^6Joule`

C

`10^5Joule`

D

`10^4Joule`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Thermodynamics

    CHETANA PUBLICATION|Exercise EXERCISE|76 Videos
  • Superposition of Waves

    CHETANA PUBLICATION|Exercise EXERCISE|86 Videos
  • Wave Optics

    CHETANA PUBLICATION|Exercise Exercise|90 Videos

Similar Questions

Explore conceptually related problems

What is atmospheric pressure of air?

The number of moles in a sample of ideal gas whose volume is 6 lit. at 27^@C and 1.6 atmosphere pressure is

If a given mass of gas occupies a volume 60 m^3 one atmospheric pressure and temperature of 100^@C , what will be its volume at 4 atmospheric pressure when temperature remains same?

A bubble of a gas released at the bottom of a lake increases to eight times its original volume when it reaches the surface. Assuming that atmospheric pressure is equivalent to the pressure exerted by a column of water 10m height, the depth of the lake is "____________" .

One mole of O_2 gas having a volume equal to 22.4 litres at 0^@C and 1 atmospheric pressure in compressed isothermally so that its volume reduces to 11.2 litres . The work done in this process is

A balloon contains 600 m^3 of helium a 37^@C and atmospheric pressure. The volume of helium at -13^@C and 0.8 atmospheric pressure will be

A certain mass of gas occupies a volume of 5 litre at 27^@C amd 2 atmosphere pressur .The volume of the gas at 327^@C and 4 atmosphere pressure is --------litre

1 g of water at 100^@C is coverted into steam at the same temperature. If the volume of steam is 1671 cm^2 , find the change in the internal energy of the system. Latent heat of steam = 2256 Jg ^-1 . (1 atmosphere pressure = 1.013 xx 10^5 Nm^-2 )

The sum of the internal energy of the system and the energy that arises due to its pressure and volume is called ______ of the system.

The temperature of an open room of volume 30 m^(3) increases from 17^(@)C to 27^(@)C due to sunshine. The atmospheric pressure in the room remains 1 xx 10^(5) Pa . If n_(i) and n_(f) are the number of molecules in the room before and after heating then n_(f) and n_(i) will be

CHETANA PUBLICATION-Thermodynamics-EXERCISE
  1. In the indicator diagram shown, the work done along the path AB is br>

    Text Solution

    |

  2. In the indicator diagram shown, the work done in the cyclic process is...

    Text Solution

    |

  3. The internal energy of air in a room of volume 40 m^3 atstandard atmos...

    Text Solution

    |

  4. A gas undergoes a change of state during which 100 J of heat is suppli...

    Text Solution

    |

  5. The amount of work done to increase the temperature of one mole of an ...

    Text Solution

    |

  6. Two engines A and B have their sources at 400 K and 350 K and sinks at...

    Text Solution

    |

  7. If two thirds of the heat taken by a heat engine from the source is gi...

    Text Solution

    |

  8. The efficiency of a heat engine is 20%, when the working substance is ...

    Text Solution

    |

  9. If the absolute temperatures of the source and sink of a heat engine a...

    Text Solution

    |

  10. Two Carnot engines A and B are operated in series. A receives heat at ...

    Text Solution

    |

  11. A refrigerator has a coefficient of performance 9. If the surrounding ...

    Text Solution

    |

  12. A refrigerator works between 0^@C and 27^@C. If heat is to be removed ...

    Text Solution

    |

  13. A gas in a closed container is heated with 10 J of energy , causing t...

    Text Solution

    |

  14. Which of the following is an example of the first law of thermodynamic...

    Text Solution

    |

  15. Efficiency of a Carnot engine is large when

    Text Solution

    |

  16. The second law of thermpdynamics deals with transfer of

    Text Solution

    |

  17. During refrigration cycle, heat is rejected by the refrigerant in the

    Text Solution

    |

  18. Select and write correct alternative from the following alternatives: ...

    Text Solution

    |

  19. State first law of thermodynamics.

    Text Solution

    |

  20. Work done during expansion is positive. Explain.

    Text Solution

    |