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Physics 9 Online
OpenStudy (anonymous):

An ideal refrigerator utilizes a Carnot cycle operating between 0∘C and 26∘C. To turn 18kg of liquid water at 0∘C into 18kg of ice at 0∘C, how much heat is exhausted into the room. And How much energy must be supplied to the refrigerator?

OpenStudy (lastdaywork):

Hey, do you know the formula of efficiency ??

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