Home
Class 12
PHYSICS
The temperature of sink of Carnot engine...

The temperature of sink of Carnot engine is `27^(@)C`. Efficiency of engine is `25%`. Then temeperature of source is

A

`27^(@)C`

B

`127^(@)C`

C

`327^(@)C`

D

`227^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
B
`eta=1-(T_(2))/(T_(1))=(1)/(4)=1-(300)/(T_(1)),(300)/(T_(1))=(3)/(4):`
`T_(1)=400K`
`t_(1)=400-273`
`=127^(@)C`.
Promotional Banner

Topper's Solved these Questions

  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Absorption, reflection and transmission of heat radiation)|65 Videos

  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Perfectly black body, emmissive power and emmissivity)|38 Videos

  • KINETIC THEORY OF GASES & RADIATION

    NIKITA PUBLICATION|Exercise MCQs (Degrees of freedom and law of equipartition of energy & Application of specific hest capacities of gases)|87 Videos

  • INTERFERENCE AND DIFFRACTION

    NIKITA PUBLICATION|Exercise MULTPLE CHOICE QUESTIONS|333 Videos

  • MAGNETIC EFFECT OF ELECTRIC CURRENT

    NIKITA PUBLICATION|Exercise MCQs (Sensitivity and accuracy of M.C.G.)|1 Videos

Similar Questions

Explore conceptually related problems

The temperature of sink of Carnot engine is 127^@C . Efficiency of engine is 50% . Then, temperature of source is

A reversible engine converts one-sixth of the heat input into work. When the temperature of the sink is reduced by 62^@C , the efficiency of the engine is doubled. The temperatures of the source and sink are

An engine has an efficiency of 1/6 . When the temperature of sink is reduced by 62^(@)C , its efficiency is doubled. Temperature of the source is

Efficiency of Carnot engine is 100% if

Source temperature of a carnot engine is 127 celsius if efficiency of carnot engine is 60% then find sink temperature

In a Carnot engine the temperature of source is 1000 K and the efficiency of engine is 70%. What is the temperature of the sink ?

An engine has an efficiency of 0.25 when temperature of sink is reduced by 58^(@)C , If its efficency is doubled, then the temperature of the source is

NIKITA PUBLICATION-KINETIC THEORY OF GASES & RADIATION -MCQs (Thermodynamics)
  1. At a constant pressure of 10^(4)Nm^(-2) , a gas expands by 0.25m^(3) ...

    Text Solution

    |

  2. A gas occupies 2 litre at S.T.P. It is provided 300 joule heat so that...

    Text Solution

    |

  3. At a constant pressure of 20 Pa a gas is compressed from 10 m^(3) to 5...

    Text Solution

    |

  4. Heat is supplied to a monoatomic gas which expands at constant pressur...

    Text Solution

    |

  5. Heat is supplied to a diatomic gas which expands at constant pressure....

    Text Solution

    |

  6. An ideal heat engine works between the temperature 327^(@)C (source) a...

    Text Solution

    |

  7. An ideal heat engine works between source at 127^(@)C and sink 27^(@)C...

    Text Solution

    |

  8. A carnot engine working between 300 K and 600 K has work output of 800...

    Text Solution

    |

  9. A Carnot's engine whose sink is at temperature of 300K has an efficien...

    Text Solution

    |

  10. An ideal heat engine working between 27^(@)C and 127^(@)C takes 400 ca...

    Text Solution

    |

  11. A Carnot reversible engine converts 1//6 of heat input into work . Whe...

    Text Solution

    |

  12. What is the efficiency of a heat engine whose temperature of source an...

    Text Solution

    |

  13. The efficiency of a Carnot engine operating between temperatures of 10...

    Text Solution

    |

  14. Two heat engines A and B have their sources at 327^(@)C and 227^(@)C a...

    Text Solution

    |

  15. The temperature of sink of Carnot engine is 27^(@)C. Efficiency of eng...

    Text Solution

    |

  16. A heat engine works on a carnot cycle with a heat sink of 27^(@)C. The...

    Text Solution

    |

  17. A carnot engine takes 300 cal. of heat at 500 k and rejects 150 cal o...

    Text Solution

    |

  18. An ideal heat engine exhausting heat at 77^(@) is to have a 30% effici...

    Text Solution

    |

  19. A heat engine takes in 300 K cal of heat from a reservoir at 627^(@)C ...

    Text Solution

    |

  20. The efficiency of the reversible heat engine is eta(r) and that of irr...

    Text Solution

    |