An air-standard Diesel cycle has a maximum temperature of 2000 K. At the beginning of compression, p1 = 95 kPa and T1 = 300 K. The mass of air is 12 g. For a compression ratio of 20, determine: (a) the net work of the cycle, in kJ. (b) the percent thermal efficiency. (c) the mean effective pressure, in kPa.