The working gas of a thermodynamic cycle is air(assume constant specific heats.)The gas originally starts at...

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Mechanical Engineering

The working gas of a thermodynamic cycle is air(assume constantspecific heats.)The gas originally starts at 100kPa, 4m3and 27oC.It undergoes a four step process:Process A-B: The gas iscompressed at constant temperature to one-fourth of its volume.Process B-C: The volume of the gas is then doubled at constantpressure. Process C-D:The gas then undergoes an adiabaticexpansion.Process D-A:The gas then undergoes a constant volumeprocess back to its original statea) Make a table of thetemperature, pressure, volume, internal energy, enthalpy, entropyand quality factor (T, P, V, U, H, S & x) at the start of eachprocess.b) Make a table of the change in internal energy, heatflow, work done, change in enthalpy, and change in entropy (U, Q,W, H, S) during each leg of the cycle.c) Draw a well-labelled P-vdiagram (indicating lines of constant temperature.)d) Calculate thethermal efficiency of the cycle.

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