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13 June, 18:58

The coefficient of performance of a refrigerator is 6.0. The refrigerator's compressor uses 115 W of electric power and is 95% efficient at converting electric power into work. What is the rate at which heat energy is removed from inside the refrigerator?

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  1. 13 June, 19:26
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    QC=655.5j/s

    Explanation:

    The performance coefficient of a refrigerator is defined as the ratio of the heat energy removed from the cold reservoir to the work input to the refrigerator:

    k=coefficient of performance

    QC=heat energy removed from the cold reservoir

    W=electric power

    k=QC/W

    95% OF 115 W = 109.25W

    6=QC/109.25

    QC=655.5j/s

    is the rate at which heat energy is removed from inside the refrigerator
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