Question

Air enters a constant-area duct at p1 = 90 kPa, V1 =
520 m/s, and T1 = 5588C. It is then cooled with negligible
friction until it exits at p2 = 160 kPa. Estimate (a) V2,
(b) T2, and (c) the total amount of cooling in kJ/kg.

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