A “Carnot” refrigerator (the reverse of a Carnot engine)
Chapter 22, Problem 54GP(choose chapter or problem)
A "Carnot" refrigerator (the reverse of a Carnot engine) absorbs heat from the freezer compartment at a temperature of \(-17^{\circ} \mathrm{C}\) and exhausts it into the room at \(25^{\circ} \mathrm{C}\).
(a) How much work must be done by the refrigerator to change \(0.50 \mathrm{~kg}\) of water at \(25^{\circ} \mathrm{C}\) into ice at \(-17^{\circ} \mathrm{C}\) ?
(b) If the compressor output is \(210 \mathrm{~W}\), what minimum time is needed to accomplish this?
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