Concept explainers
Air at 300°C and 130 kPa flows through a horizontal 7-cm ID pipe at a velocity of 42.0 m/s.
(a) Calculate
(b) If the air is heated to 400°C at constant pressure, what is
(c) Why would it be incorrect to say that the rate of transfer of heat to the gas in Part (b) must equal the rate of change of kinetic energy?
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