3.2 A three-process cycle uses 3 kg of air and undergoes the following processes: polytropic compression from state 1 to state 2, where P1= 150 kPa, T1= 360 K, P2= 750 kPa, and ô = 1.2; constant-pressure cooling from state 2 to state 3; and constant temperature heating from state 3 to state 1, completing the cycle. Find the temperatures, pressure, and volumes at each state and determine the AH, AU, Q & W for each process and for the entire cycle. Assume C?= 5/2 R.
3.2 A three-process cycle uses 3 kg of air and undergoes the following processes: polytropic compression from state 1 to state 2, where P1= 150 kPa, T1= 360 K, P2= 750 kPa, and ô = 1.2; constant-pressure cooling from state 2 to state 3; and constant temperature heating from state 3 to state 1, completing the cycle. Find the temperatures, pressure, and volumes at each state and determine the AH, AU, Q & W for each process and for the entire cycle. Assume C?= 5/2 R.
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Transcribed Image Text:3.2 A three-process cycle uses 3 kg of air and undergoes the following processes:
polytropic compression from state 1 to state 2, where P1= 150 kPa, T1= 360 K,
P2= 750 kPa, and 8 = 1.2; constant-pressure cooling from state 2 to state 3; and
constant temperature heating from state 3 to state 1, completing the cycle.
Find the temperatures, pressure, and volumes at each state and determine the
AH, AU, Q & W for each process and for the entire cycle. Assume Cp= 5/2 R.
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