a cylinder contain 10kg of a certain fluid at an initial pressure of 40bar the fluid is allowed to expand reversible 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 it original position heat is then supplied reversible with the piston firmly locked in position until the pressure rises to the original value at 40bar. calculate the network done by the fluid for an initial volume of 0.05m^3​