A mass of 1.5kg of air enters a combustion chamber at atmospheric conditions of 100 kPa and 25 degrees C at state 1. from state 1 to state 2 the air is compressed to 1/20 of its initial volume during a polytrophic process with n=1.4, requiring 742.36 kJ of work. The air is then isobarically heated to 2200 degrees C at state 3, followed by a polytropic expansion with n=1.4 until reaching a pressure of 362.64 kPa at state 4. Finally, the air is isochorically cooled, returning to its initia state. Find the net work produced by this cycle, assuming the air behaves as an ideal gas.