Oxygen (molar mass 32 kg/kmal}, in a vessel, is heated reversibly at constant pressure of 2.10 bar until it has a specic volume of 0.2 m3/kg. it is then compressed reversibly when the vessel is perfectly thermally insulated, to a pressure of 8.4 bar, then allowed to expand reversibly according the law Pv1.7 = cam! is nally heated when the vessel is rigid back to Its initial conditions. The work done by oxygen in the constant pressure process is 5150 like. Calculate: The net-work of the cycle using only the specific volumes, The temperatures for ea ch state, The net heat of the tie, and Sketch a fully labelled p-v diagram for the processes. Assume ox en to be a rfect as and take or: 0.649 it A: . K