Home
Class 11
PHYSICS
If a heat engine absorbs 50 KJ heat from...

If a heat engine absorbs 50 KJ heat from a heat source and has an efficiency of 40%, then the heat released by it in heat sink is

A

40 KJ

B

30 KJ

C

20 KJ

D

20 J

Text Solution

Verified by Experts

The correct Answer is:
b
Promotional Banner

Topper's Solved these Questions

  • HEAT AND THERMODYNAMICS

    SURA PUBLICATION|Exercise Long Answer Question :|5 Videos

  • HEAT AND THERMODYNAMICS

    SURA PUBLICATION|Exercise Numerical Problems|16 Videos

  • HEAT AND THERMODYNAMICS

    SURA PUBLICATION|Exercise Very short answer question :|25 Videos

  • GRAVITATION

    SURA PUBLICATION|Exercise VALUE BASED QUESTIONS|4 Videos

  • KINEMATICS

    SURA PUBLICATION|Exercise Creative Question (HOTS)|12 Videos

Similar Questions

Explore conceptually related problems

If a heat engine absorbs 2 KJ heat from a heat source and release 1.5 KJ heat into cold reservoir, then it's efficiency is

The unit of heat is

During a cyclic process, a heat engine absorbs 500 J of heat from a hot reservoir, does work and ejects an amount of heat 300 J into the surroundings (cold reservoir). Calculate the efficiency of the heat engine?

Define -heat.

Define heat engine .

A carnot engine absorbs heat at 127^(@)C and rejects heat at 87^(@)C . The efficiency of engine is

An ideal heat engine working between temperature T_1 and T_2 has an efficiency eta . The new efficiency if both the source and sink temperature are doubled, will be

In a carnot heat engine 8000J of heat is absorbed from a source at 400 K and 6500 J of heat is rejected to the sink. The temperature of the sink is ………. .

SURA PUBLICATION-HEAT AND THERMODYNAMICS-Short answer question :
  1. An ideal heat engine working between temperature T1 and T2 has an effi...

    Text Solution

    |

  2. A Carnot engine converts one-sixth of the heat into work. When the tem...

    Text Solution

    |

  3. What is a cyclic process ?

    Text Solution

    |

  4. Write the conditions for reversible process

    Text Solution

    |

  5. What is the value of sink temperature, when efficiency of engine is 10...

    Text Solution

    |

  6. A metal tube & a rod of same distance same material & same o...

    Text Solution

    |

  7. How is skating possible on snow?

    Text Solution

    |

  8. State that the coefficient of cubical ecpansion of an ideal ...

    Text Solution

    |

  9. How does the density of a solid or a liquid vary with temper...

    Text Solution

    |

  10. Write the important properties of thermal radiations .

    Text Solution

    |

  11. State the factors on which the conduction of heat through a sub...

    Text Solution

    |

  12. Write any 3 phenomena which are based on thermal convertion...

    Text Solution

    |

  13. A Carnot engine having an efficiency of eta = (1 / 10) as a heat engin...

    Text Solution

    |

  14. Describle an analytical method for a dtermining th work done ...

    Text Solution

    |

  15. The temperature of sink of Carnot engine is 27°C. Efficiency of engine...

    Text Solution

    |

  16. The efficiency of Carnot's engine operating between reservoirs, mainta...

    Text Solution

    |

  17. Derive an expressionfor the work done during the isothermal e...

    Text Solution

    |

  18. If a heat engine absorbs 50 KJ heat from a heat source and has an effi...

    Text Solution

    |

  19. The efficiency of heat engine is 30%. If it gives 30 KJ heat to the he...

    Text Solution

    |

  20. What is meant by coefficient of linear expansion superficial ...

    Text Solution

    |