0.5 kg of an ideal gas is contained within a piston-cylinder assembly. The gas undergoes a process in which the pressure-volume relationship is PV1.5=constant The initial pressure and the initial volume are 300 kPa and 0.2 m, respectively. The final volume is 0.1 m. During the process, 20 kJ heat is added to the gas, and 5 kJ heat is lost through the walls. a) use the provided information and explain if you have Win to the system or Wout from the system. b) Determine the change in the specific internal energy of the gas in the process.