0.90 L of 25 °C water is placed in a refrigerator. The refrigerator's motor must supply an extra 9.0 W power to chill the water to 5°C in 1.0h. What is the refrigerator's coefficient of performance?

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0.90 L of 25 °C water is placed in a
refrigerator. The refrigerator's motor must
supply an extra 9.0 W power to chill the
water to 5°C in 1.0h. What is the
refrigerator's coefficient of performance?
Transcribed Image Text:0.90 L of 25 °C water is placed in a refrigerator. The refrigerator's motor must supply an extra 9.0 W power to chill the water to 5°C in 1.0h. What is the refrigerator's coefficient of performance?
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