a two-liter, four-cylinder, open-chamber si engine operates at 3500 rpm using stoichiometric gasoline. at this speed, volumetric efficiency is 93%, combustion efficiency is 98%, indicated thermal efficiency is 47%, and mechanical efficiency is 86%. Calculate a. Break Powe [kW] b. bmep [kPa] c. Amount of unburned exhausted from the engine [kg/hr] d. bsfc [gm/kW-hr]