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Discussion :: GATE Agricultural

  1. One thousand units of mixed fruit bar, each weighing 100 g with a surface area of 0.01 m2, are frozen from 700C molten mass condition to -200C frozen storage condition within 3 hours. The specific heat capacity values of the bar are 3.6 kJ kg-1 K-1 and 1.97 kJ kg-1 K-1 before and after freezing point (0 °C) respectively. If the latent heat of crystallization is 250 kJ kg-1, the cooling capacity of the refrigeration unit required in tons of refrigeration is
    2. A.
    0.77
    B.
    1.43
    C.
    1.66
    D.
    4.32

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    Workspace

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    Answer : Option B

    Explanation :

    -NA-

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