# A mass of 8 kg gas expands within a flexible container so that the p–v relationship is of the from.. 1 answer below »

A mass of 8 kg gas expands within a flexible container so that the p–v relationship is of the from pvl.2 = constant. The initial pressure is 1000 kPa and the initial volume is 1 m3. The final pressure is 5 kPa. If specific internal energy of the gas decreases by 40 kJ/kg, find the heat transfer in magnitude and direction.