Engineering, 05.08.2019 18:20, kathleensumter5100

Ahousehold refrigerator that has a power input of 450 w and a cop of 1.5 is to cool five large watermelons, 10 kg each, to 8°c. if the watermelons are initially at 28°c, determine how long it will take for the refrigerator to cool them? the watermelons can be treated as water whose specific heat is 4.2 kj/kg·°c. is your answer realistic or optimistic?

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Ahousehold refrigerator that has a power input of 450 w and a cop of 1.5 is to cool five large water...