Question #177771

Unit mass of a certain fluid is contained in a cylinder at an initial pressure of 25 bars. The fluid is allowed to expand reversibly behind a piston according to a law pv 2 =constant until the volume is doubled. The fluid is then cooled reversibly at constant pressure until the piston regains its original position. Heat is then supplied reversibly with the piston firmly locked in position until the pressure rises to the original value of 25 bars. Calculate the net work done by the fluid, for an initial volume of 0.05m3 & Sketch the process on P-v Diagram.

Expert's answer

For position 1 to 2

Net work =

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