Air is expanded adiabatically from p1 = 4000 kPa, T1 = 800 K to p2 = 100 kPa, T2 = 300 K. a) Determine the change in ent

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answerhappygod
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Air is expanded adiabatically from p1 = 4000 kPa, T1 = 800 K to p2 = 100 kPa, T2 = 300 K. a) Determine the change in ent

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Air is expanded adiabatically from p1 = 4000 kPa, T1 = 800 K to
p2 = 100 kPa, T2 = 300 K.
a) Determine the change in entropy for this process.
b) Determine the final temperature T2 if the process were
isentropic.
c) Determine efficiency of the expansion.
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