Nitrogen (R=0.2968 kJ/kg-K, cv = 0.745 kJ/kg-K) at 100 kPa is contained in an insulated piston cylinder device as shown in the picture. Energy is added to the system using a paddle wheel and the piston moves slowly at constant pressure until it hits the stops. At this point, the volume of the system has increased to 1.1 times the original volume. More energy is added with the paddle wheel until the pressure increases by 25 kPa. Find the entropy generation (kJ/kg-K) of the process within the piston cylinder device.