4-159 A 2-kW electric resistance heater submerged in 5-kg water is turned on and kept on for 10 min. During the process, 300 kJ of heat is lost from the water. The temperature rise of water is a) 0.4°C d) 71.8°C b) 43.1°C e) 180.0°C c) 57.4°C | |
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