Question: Air flows steadily through a long insulated duct with a cross-sectional area of 100 cm2. At the inlet, the conditions are 300 kPa, 300 K,

Air flows steadily through a long insulated duct with a cross-sectional area of 100 cm2. At the inlet, the conditions are 300 kPa, 300 K, and 10 m/s. At the exit, the pressure drops to 100 kPa due to frictional losses in the duct. Determine
(a) The exit temperature.
(b) The exit velocity. Use the PG model for air.

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