Best Answer: In an acid-base titration the idea is to carry out a neutralization reaction between an acid solution and a base solution in order to determine the ...
Detonation (not to be confused with pre-ignition) is a spontaneous combustion of the end-gas (remaning air-fuel mixture) within the combustion chamber AFTER the spark/ignition. Combustion of the air-fuel mixture is supposed to be a smooth, controlled burn originating at the spark plug and spreading throughout the chamber, (relatively) steadily increasing pressure and tempurature to drive the piston down.
PAHs in the exhaust gas are split between gas and particulate phase. A fraction of the light, mostly 2-ring compounds is present in the gas. The most harmful compounds of four or more rings are found almost exclusively in the organic fraction (SOF) of diesel particulate matter. PAHs are present in diesel fuels, with their concentrations typically varying between 1.5 and 2.5%.