An air-standard dual cycle has a compression ratio of 9. at the beginning of compression the pressure is 100 kpa, the temperature is 300k while the volume is 14 liters. the heat addition is 22.7 kj, with one-half added at constant volume and one-half added at constant pressure. using exact analysis determine; a) sketch the cycle on a p - v and t- s diagrams b) the temperatures at the end of each heat addition process, in k c) the net work of the cycle, per unit mass of air, in kj/kg. d) the thermal efficiency. e) the mean effective pressure, in kpa.