During atomization the fuel still remains in liquid form, it's just broken up into small droplets consisting of multiple fuel molecules.
Once this mixture of fuel droplets, and air is inside the cylinder, and a spark occurs do the air molecules gain kinetic energy, then collide into the atomised fuel, and the individual fuel molecules break apart thus turning fuel from a liquid to a gas (vaporisation), then those fuel molecules combines with the air molecule, then combustion occurs? If this turns out to be correct, once the fuel molecule combines with the air molecule, how does combustion occur from there?Does the fuel molecule just rapidly release energy, thus the nearby air molecule start moving rapidly, and push on the piston head to produce power?
As stated above, I'm explaining how I see the process occurring, but I'm not exactly sure I'm correct. I'm just confused on how molecules actually perform during this process. I'm trying grasp a better understanding overall on how scenarios like cold starting, or running too rich or lean can affect combustion on a molecular level.
Any help is appreciated, thank you.