In a mechanical refrigerator, the low temperature coils are at a temperature of \( -23^{\circ} \....

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In a mechanical refrigerator, the low temperature
P
coils are at a temperature of \( -23^{\circ} \mathrm{C} \) and the compressed gas in the condenser has a temperature of \( 27^{\circ} \mathrm{C} \). The theoretical coefficient of performance is:


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