Do differant cars emit a differant exhaust composition, and what would they be for differant fuels?

Question

sources please, or if you know this (and both parts of the question) please tell me your qualifications and full name, I will give you credit. Don't worry, this isn't too serious anyway, so you don't have to invest much time into this)

thanks , then go!

Answer 1

For a car, burning gasoline, the reactants are the air and the fuel, which is a hydrocarbon chain (hydrogen and cabon, with some sulfur impurities).  The emissions will have the same constituents, but will be in differing quantities, consisting of:

Hydrocarbons: usually unburned or partially burned fuel,

Nitrogen oxides (NOx): These are generated when nitrogen in the air reacts with oxygen under the high temperature and pressure conditions inside the engine. NOx emissions contribute to both smog and acid rain.

Carbon monoxide (CO): a product of incomplete combustion,

Carbon dioxide (CO2): a greenhouse gas

Particulates. Particles of micron size.

Sulphur oxide (SOx) General term for oxides of sulphur, mostly sulfur dioxide

There will be no other chemicals in the mix, unless the gasoline has additives (which often happens, but there is no standard formula for these).