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1. To what temperature will 8400 J of heat raise 3.0 kg of water that is...

1. To what temperature will 8400 J of heat raise 3.0 kg of water that is initially at 60.0o C?

2. What is the specific heat of a metal substance if 139 kJ of heat is needed to raise 5.3 kg of the metal from 19.0o C to 37.0o C?

3. If an ideal refrigerator keeps its contents at 4.0o C when the house temperature is 22o C, what is its coefficient of performance?

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