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A vessel containing 5.0 kg of water at 10C is put into a freezer. The 1/7 HP motor (1 HP = 746 W) runs

A vessel containing 5.0 kg of water at 10C is put into a freezer. The 1/7 HP motor (1 HP = 746 W) runs for 45.0 minutes to freeze the liquid at temperature 0C. What is the COP of the refrigerator? 1. 5.7 2. 4.6 3. 6.5 4. 7.2 5. 3.6

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