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Explain the working of a refrigerator …

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Explain the working of a refrigerator as a heat pump.

    • Posted by Kunal Gupta 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 1 answers

    Yogita Ingle 6 years, 11 months ago

    • It works on principle which is reverse of a heat engine.
    • In refrigerators we have 2 bodies lower temperature (cold) body which is freezer and higher temperature (hot) body which is surroundings.
    • It takes heat from the cold reservoir and then some work is done on the refrigerator and then the amount of heat is transferred to heat reservoir.
    • Let Q2 be the takes from the cold reservoir, W is the work done on the system and then releases Q1 amount of heat to the hot reservoir.
    • Mathematically Q2+ W=Q1 

    Heat Pump: In a heat pump heat is supplied into system when the surroundings are cold.

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