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Air with a temperature of 27 o C flows in a rectangular duct length at a speed of 3x10 -4 kg/sec. The ducting has a

Air with a temperature of 27 oC flows in a rectangular duct length at a speed of 3x10-4 kg/sec. The ducting has a side size of 4 mm and 16 mm and 1 m long. Furthermore, the uniform heat flux is 600 W/m2 on the ducting surface. Determine the exit air temperature and temperature the outlet surface of the duct.

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