Answer to Question #70942 in Molecular Physics | Thermodynamics for maged

Question

A fluid at 0.7 bar occupying 0.09m3 is compressed reversibly to a pressure of 3.5 bar according to law pvn = constant. The fluid is then heated reversibly at constant volume until the pressure is 4 bar; the spesific volume is then 0.05m3 / kg. A reversible expansion according to a law pv2 = constant restores the fluid to its initial state. Sketch the cycle to a p-v diagram and calculate: i) The mass of fluid present (THIS is the one I cannot seem to figure out.. basics be damned) ii) the value of n in the first process. iii) the net work of the cycle.