at the beginning of the compression process of an airstandard otto cycle, p1 5 1 bar, t1 5 290 k, v1 5 400 cm3 . the maximum temperature in the cycle is 2200 k and the compression ratio is 8. determine (a) the heat addition, in kj. (b) the net work, in kj. (c) the thermal efficiency. (d) the mean effective pressure, in bar.