Solved: Air is to be heated steadily by an 8-kW electric
Chapter 5, Problem 5207(choose chapter or problem)
Air is to be heated steadily by an 8-kW electric resistance heater as it flows through an insulated duct. If the air enters at 508C at a rate of 2 kg/s, the exit temperature of air is (a) 46.08C (b) 50.08C (c) 54.08C (d) 55.48C (e) 58.08C
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