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A refrigerator takes a quantity of heat ...

A refrigerator takes a quantity of heat 'Q' from the cold body, with work done'W' on it, transfer heat to the hot body.
What does the ratio Q/W represent?

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A refrigerator takes a quantity of heat 'Q' from the cold body, with work done 'W' on it, transfer heat to the hot body. The value of Q/W cannot be infinity. State the law of thermodynamics that explains this statement.

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MAXIMUM PUBLICATION-THERMODYNAMICS-EXERCISE
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