A- Air at 1.2 bar, 35 °C and 0.02 m³ is heated at constant volume process till pressure becomes 6 bar and then it is cooled at constant pressure process. Finally is expanded isothermally to initial state. Calculate the work, heat and change in entropy for each cycle and for the overall cycle.

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Q: A piston'cylinder containing 1 m² of air at 100 °C and 100 kPa is left to cool at constan pressure…

A: V1= 1m3 P1= = 100 KPa T1 = 100oC = 373 K  Moles of air =  PV1=nRT1 n= 100×1000×18,314×373=32.25…

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A: Temperature at the beginning and end of the compression respectively 320C and 4240C.

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Q: Q.7Nitrogen gas (N2) at 100 °C enters a horizontal friction less tube with the velocity of 75 m/sec…

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