A freezer has a coefficient of performance of 2.40. Thefreezer is to convert 1.80 kg of water at 25.0C to 1.80 kg of ice at-5.0C in one hour. (a) What amount of heat must be removed from thewater at 25.0C to convert it to ice at -5.0C? (b) How much electricalenergy is consumed by the freezer during this hour? (c) How muchwasted heat is delivered to the room in which the freezer sits?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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A freezer has a coefficient of performance of 2.40. The
freezer is to convert 1.80 kg of water at 25.0C to 1.80 kg of ice at
-5.0C in one hour. (a) What amount of heat must be removed from the
water at 25.0C to convert it to ice at -5.0C? (b) How much electrical
energy is consumed by the freezer during this hour? (c) How much
wasted heat is delivered to the room in which the freezer sits?

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