An ideal Otto cycle has a compression ratio of 8. At the beginning of the compression process, air is at 95 kPa and 27°C, and 750 kJ/kg of heat is transferred to air during the constant-volume heat-addition process. Taking into account the variation of specific heats with temperature, determine:
a) The compression work
b) The pressure at the end of the compression process
c) The heat out of the engine
d) The mean effective pressure for the cycle
e) The thermal efficiency for the cycle