Question: Argon gas enters a constant cross-sectional-area duct at Ma1 = 0.2, P1 = 320 kPa, and T1 = 400 K at a rate of 0.8

Argon gas enters a constant cross-sectional-area duct at Ma1 = 0.2, P1 = 320 kPa, and T1 = 400 K at a rate of 0.8 kg/s. Disregarding frictional losses, determine the highest rate of heat transfer to the argon without reducing the mass flow rate.

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