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In a cold storage, ice melts at the rate...

In a cold storage, ice melts at the rate of `2 kg//h` when the external temperature is `20^(@)C`. Find the minimum power output of the motor used to drive the refrigerator which just prevents the ice from melting. Latent heat of fusion of `ice = 80 cal//g`

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SL ARORA-THERMODYNAMICS-Exercise
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