Home
Class 11
PHYSICS
A gas is heated isobarically and the hea...

A gas is heated isobarically and the heat used for external work is W.Find the total amount of heat supplied.

Text Solution

Verified by Experts

`triangleQ = triangleW + triangleU`
`=nRT + nC_(v) triangleT = nRT + (nRtriangleT)/(gamma-1)= (nRtriangleT)((gamma)/(gamma-1))`
`=(Wgamma)/(gamma-1) " " [therefore W = nRtriangleT]`
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES

    BANSAL|Exercise Practice Exercise|3 Videos
  • KINETIC THEORY OF GASES

    BANSAL|Exercise Exercise 1|41 Videos
  • KINETIC THEORY OF GASES

    BANSAL|Exercise Section-B|13 Videos
  • HEAT TRANSFER

    BANSAL|Exercise Exercise|89 Videos
  • UNIT DIMENSION, VECTOR & BASIC MATHS

    BANSAL|Exercise Exercise|10 Videos

Similar Questions

Explore conceptually related problems

An ideal diatomic gas is heated at constant pressure such that it performs a work W=2.0 J . Find the amount of heat supplied.

One mole of an ideal gas is heated isobarically from the freezing point to the boiling point of water each under normal pressure . Find out the work done by the gas and the change in its internal energy. The amount of heat involved is 1 kJ.

A gas is heated at a constant pressure. The fraction of heat supplied used of external work is

Four moles of a perfect gas is heated to increaes its temperature by 2^(@)C absorbs heat of 40cal at constant volume. If the same gas is heated at constant pressure find the amount of heat supplied.

n moles of an ideal gas with constant volume heat capacity C_(V) undergo an isobaric expansion by certain volumes. The ratio of the work done in the process, to the heat supplied is:

Assertion: If a gas is heated isothennally, then no part of the heat supplied is used to increase the internal energy. Reason: Change in internal energy equals work done on the system.

A diatomic gas (gamma=1.4) does 2000J of work when it is expanded isobarically. Find the heat given to the gas in the above process (in kJ).

A gas for which lambda=4//3 , is heated at constant pressure. What percentage of the total heat supplied is used up for external work?

The molar heat capacity for an ideal monatomic gas is 3R.If dQ is the heat supplied to the gas and dU is the change in its internal energy then for the process the ratio of work done by the gas and heat supplied is equal to

BANSAL-KINETIC THEORY OF GASES-Solved Example
  1. 70 calories of heat required to raise the temperature of 2 moles of an...

    Text Solution

    |

  2. A vessel contains 1 mole of O(2) and 1 mole of He. The value of gamm...

    Text Solution

    |

  3. An ideal gas is taken through the cycle AtoBtoCtoA, as shown in the fi...

    Text Solution

    |

  4. Aglass tube scaled at both end is 1 m long. It lies horizontally with ...

    Text Solution

    |

  5. Find the amount of work done to increase the temperature of one mole j...

    Text Solution

    |

  6. A mercury thermoeter read 80^(@)C when the mercury is at 5.2cm mark an...

    Text Solution

    |

  7. A vertical cylinder pistion system has cross-section S. It contains 1 ...

    Text Solution

    |

  8. A tyre pumped to a pressure 3.375 atm "at" 27^(@)C suddenly bursts. Wh...

    Text Solution

    |

  9. 3 moles of a gas mixture having volume V and temperature T is compress...

    Text Solution

    |

  10. One mole of a certain ideal gas is contained under a weight-less pisto...

    Text Solution

    |

  11. Calculate the heat absorbed by the system is going through the process...

    Text Solution

    |

  12. The mercury manometer consists of two unequal arms of equal cross sect...

    Text Solution

    |

  13. An ideal gas has pressure p(0), volumn V(0) and temperature T(0). It i...

    Text Solution

    |

  14. Show a vertical cylindrical vesse seperated in two parts by a friction...

    Text Solution

    |

  15. A cylindrical container of volume V(0) is divided into two parts by a ...

    Text Solution

    |

  16. A gas is heated isobarically and the heat used for external work is W....

    Text Solution

    |

  17. A vessel contains a mixtrue consisting of m(1) = 7g of nitrogen M(1) =...

    Text Solution

    |