An Otto cycle engine has air beginning the compression process at 14 psia and 110°F. The air begins the expansion process at a temperature of 4800°F. The compression ratio of the engine is 9.8. Treating the air as an ideal gas with constant specific heats, determine (a) the temperature and pressure at the end of each process, (b) the net work per lbm of air produced in the cycle, (c) the thermal efficiency of the cycle, and (d) the mean effective pressure.
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