Home
Class 12
PHYSICS
A refrigerator placed in a room at 300K ...

A refrigerator placed in a room at 300K has inside temperature 200K. How many calories of heat shall be delivered to the room for each 2 KiloCal of energy consumed by the refrigerator ideally?

A

4 kCal

B

2 kCal

C

8 kCal

D

6 kCal

Text Solution

Verified by Experts

The correct Answer is:
D
`W/Q_(1) = 1 -T_(2)/T_(1)`,
`2/Q_(1) = 1- 200/300`
`rArr Q_(1) = 6 kCal`
Promotional Banner

Topper's Solved these Questions

  • NTA TPC JEE MAIN TEST 64

    NTA MOCK TESTS|Exercise PHYSICS|30 Videos

  • NTA TPC JEE MAIN TEST 66

    NTA MOCK TESTS|Exercise PHYSICS|30 Videos

Similar Questions

Explore conceptually related problems

A refrigerator placed in a room at 300K has inside temperature 200K. How many caslories of heat shall be delivered to the room for each 2 KiloCal of energy consumed by the refrigerator ideally?

In a refrigerator, heat from inside at 277K is transferred to a room at 300K. How many joules of heat shall be delivered to the room for each joule of electrical energy consumed ideally?

In a refrigerator, heat from inside at 277 K is transferred to a room at 300K . What is the cofficient of performance of the refrigerator. How many joule of heat will be deliverd to the room for each joule of electric energy consumed ideally?

The temperature inside a refrigerator is t_(2)^(@)C . The amount of heat delivered to the room for each joule of electrical energy consumed ideally will be

In a refrigerator, heat from inside at 270 K is transferred to a room at 300 K . How many joule of heat energy is drawn from the sink for each joule of electrical energy consumed ideally ?

The temperature inside a refrigerator is t_2 °C and the room temperature is t_1 °C. The amount of heat delivered to the room for each joule of electrical energy consumed ideally will be

NTA MOCK TESTS-NTA TPC JEE MAIN TEST 65-PHYSICS
  1. The distance moved by the screw of a screw gauge is 2 mm in four rotat...

    Text Solution

    |

  2. Choose the wrong statement.

    Text Solution

    |

  3. A mass of 1 kg is suspended by means of a thread. The system is (i) li...

    Text Solution

    |

  4. Two plane mirror M(1) and M(2) area inclined at angle theta as show...

    Text Solution

    |

  5. If I=50kg m^(2), then how much torque will be applied to stop it in 10...

    Text Solution

    |

  6. The moment of Inertia of an incomplete disc of mas M and radius R as s...

    Text Solution

    |

  7. The atmospheric temperature in the surroundings of a lake is -10 °C wh...

    Text Solution

    |

  8. A refrigerator placed in a room at 300K has inside temperature 200K. H...

    Text Solution

    |

  9. If the molar specific heat capacity at constant volume of an ideal gas...

    Text Solution

    |

  10. A particle is fired with velocity u making angle theta with the horizo...

    Text Solution

    |

  11. In a nuclear reactor an element Xdecays to a radio active element Y at...

    Text Solution

    |

  12. If the peak value of the electric fields produced by the radiation com...

    Text Solution

    |

  13. The LC product of a tuned amplifier circuit require to generate a carr...

    Text Solution

    |

  14. The mass and the diameter of a planet are three times the repective v...

    Text Solution

    |

  15. From the above velocity-time graph of a body, identify the interval of...

    Text Solution

    |

  16. A rectangular coil ABCD is hung from one side of a balance (as shown i...

    Text Solution

    |

  17. Equation of travelling wave on a stretched string of linear density 4 ...

    Text Solution

    |

  18. Length of an elastic string is x metre when longitudinal tension is 3N...

    Text Solution

    |

  19. In YDSE with a light of wavelength 6000 A. Distance between coherent s...

    Text Solution

    |

  20. At what height (in metres) from the ground would a body sliding over a...

    Text Solution

    |