The combustion in a gasoline engine may be approximated by a constant volume heat addition process. there exists the air-fuel mixture in the cylinder before the combustion and the combustion gases after it, and both may be approximated as air, an ideal gas. in a gasoline engine, the cylinder conditions are 0.95 mpa and 425◦c before the combustion and 1700◦c after it. determine the pressure at the end of the combustion process