A cylinder/piston contains air at 100 kPa and 20°C with a V=0.3 m^3. The air is compressed to 800 kPa in a reversible polytropic process with n = 1.2, after which it is expanded back to 100 kPa in a reversible adiabatic process. Find the net work.

• A. -174.6 kJ/kg
• B. -154.6 kJ/kg
• C. -124.6 kJ/kg
• D. -194.6 kJ/kg