An air Otto cycle has compression ratio of 8. At the beginning or the compression process, pressure is 1 bar. temperature is 300 K. and volume is 500 cm3. The maximum temperature in the cycle is 2200 K. cp=718 J/kg-K. k=1.4. Air is ideal gas. Find: Sketch the process on a T-s diagram and a p-v diagram. The net work per unit of air in kJ/kg. Heat addition in kJ/kg. Thermal efficiency.