a three process cycle uses 3 kg of air and undergoes the following process: polytropic compression from state 1 to state 2, whre p1=150 kPa, t1= 360 K, p2=750 kpa and n=1.2, constant pressure coling from state 2 to state 3 and constant temperature heating form state 3 to state 1, thus completing the cycle. determine the cycle heat and work.

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