2-127 A 2-kW electric resistance heater in a room is turned on and kept on for 30 min. The amoun - Themodynamics Cengel & Boles 5th edition

2-127 A 2-kW electric resistance heater in a room is turned on and kept on for 30 min. The amount of energy transferred to the room by the heater is a) 1 kJ b) 60 kJ c) 1800 kJ d) 3600 kJ e) 7200 kJ


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