Home
Class 11
PHYSICS
An ideal refrigerator has a freezer at a...

An ideal refrigerator has a freezer at a temperature of -13°C. The coefficient of performance of the engine is 5. The temperature of the air to which heat is rejected will be

A

325°C

B

39°C

C

330°C

D

320°C

Text Solution

Verified by Experts

The correct Answer is:
b
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • HEAT AND THERMODYNAMICS

    SURA PUBLICATION|Exercise (V I) Choose the Incorrect pair :|3 Videos

  • HEAT AND THERMODYNAMICS

    SURA PUBLICATION|Exercise (V II ) Assertion & Reason:|2 Videos

  • HEAT AND THERMODYNAMICS

    SURA PUBLICATION|Exercise (IV ) Choose the odd one out:|3 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

An Ideal refrigerator has a freezer at temperature -12^(@)C . The coefficient of performance of the engine is 5. The temperature of the air (to which the heat ejected ) is

An ideal refrigerator keeps its content at 0^@ C while the room temperature is 27^@ C. Calculate its coefficient of performance.

Knowledge Check

  • An ideal refrigerator has a freezer at temperature -12^(@)C . The coefficient of perfomance of the engine is 5. the temperature of the air (to which the heat ejected) is

    A
    `50^(@)`
    B
    `45.2^(@)`C
    C
    `40.2^(@)C`
    D
    `37.5^(@)C`

  • An ideal refrigerator has a freezer at temperature -12^(@)C . The coefficient of performance of the engine is 5. The temperature of the air (to which the heat ejected) is……

    A
    `50^(@)C`
    B
    `45.2^(@)C`
    C
    `40.2^(@)C`
    D
    `37.5^(@)C`

  • A Carnot engine converts one-sixth of the heat into work. When the temperature of the sink is reduced by 62°C, the efficiency of the engine is doubled. The temperature of the source and sink are

    A
    80°C, 37°C
    B
    95°C, 28°C
    C
    90°C, 37°C
    D
    99°C, 37°C

    • Similar Questions

    Explore conceptually related problems

    An ideal refrigerator keeps its content at 0^(@)C while the room temperature is 27^(@)C .Calculate its coefficient of performance.

    An ideal refrigerator keeps its content at 0^(@)C while the room temperature is 27^(@)C calculate its coefficient of performance.

    An ideal refrigerator keeps its content at 0^(@)C while the room temperature is 27^(@)C . Calculate its coefficient of performance.

    The temperature of sink of Carnot engine is 27°C. Efficiency of engine is 25%. Then find the temperature of source.

    Which material is having a small value of temperature coefficient of resistance ?

    Home
    Profile