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ybhathena
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Is oxygen that comes out from a car and regular oxygen the same (exactly identical) except that one is warmer than the other?
The air we breath out contains 13 to 16% oxygen. That doesn't mean we produce oxygen. It just means our lungs don't take up all of the oxygen in the air that we breath in. We run lean.ybhathena said:http://www.volkspage.net/technik/ssp/ssp/SSP_230.pdf
in diesel engines oxygen is one of the contributors
The OP is talking about diesel engines, not gasoline (petrol) engines. Gasoline engines operate at very close to a stoichiometric ratio. The exhaust from a gasoline burning car ideally contains no unburned fuel, no unburned oxygen. Diesel engines run lean. The exhaust contains oxygen.mr. vodka said:The oxygen that comes out is not the same as ordinary oxygen, even stronger: it's not oxygen anymore at all! In the engine the oyxgen gets transformed to (among other things) carbon dioxide. It's this carbon dioxide that your car releases, and that is definitely not the same oxygen. It's very unhealthy to breath in carbon dioxide.
Someone called?ybhathena said:Is oxygen that comes out from a car and regular oxygen the same (exactly identical) except that one is warmer than the other?
ybhathena clarified the question raised in the opening post in post #3. The question is about O2 in the exhaust from diesel engines.NascentOxygen said:There isn't a whole lot of everyday talk about oxygen from car exhausts, but of course there are just as many oxygen atoms emerging from the exhaust as enter via the air filter and fuel*.
mr. vodka said:The oxygen that comes out is not the same as ordinary oxygen, even stronger: it's not oxygen anymore at all! In the engine the oyxgen gets transformed to (among other things) carbon dioxide. It's this carbon dioxide that your car releases, and that is definitely not the same oxygen.
It's very unhealthy to breath in carbon dioxide.
Mr Vodka was correct. It is unhealthy to breath CO2 in high concentrations. Carbon dioxide concentrations of 15% or higher are very deadly. Concentrations between 10 to 15% will also kill; it just takes a bit longer. Even though diesel exhaust contains 10% oxygen (about the same as the partial pressure atop a 5500 meter tall mountain), that diesel exhaust contains about 12% CO2 is what makes it deadly (short term).krd said:No. It's not unhealthy to breath in carbon dioxide. You do it all the time.
That is not the case with diesel engines. They run lean. They don't produce much carbon monoxide.The real dangerous gas - when it comes to any combustion source is carbon monoxide.
Then generalised it in post #5.D H said:ybhathena clarified the question raised in the opening post in post #3.
No, car exhaust and oxygen are not the same thing. Car exhaust is a combination of gases and particles that are emitted from a vehicle's engine, while oxygen is a pure element that makes up about 21% of the Earth's atmosphere.
No, car exhaust and oxygen do not have the same chemical composition. Car exhaust is primarily made up of carbon dioxide, water vapor, nitrogen oxides, and other pollutants, while oxygen is a diatomic molecule made up of two oxygen atoms.
No, car exhaust and oxygen are not identical in terms of temperature. The temperature of car exhaust can vary depending on the type of fuel and engine conditions, while the temperature of oxygen in the Earth's atmosphere is relatively stable.
No, car exhaust cannot be converted into oxygen. Car exhaust is primarily made up of carbon dioxide, which can be converted into oxygen through photosynthesis in plants, but this process is not instantaneous and cannot completely offset the emissions from cars.
Car exhaust can be harmful to breathe in, but not necessarily because of the lack of oxygen. While car exhaust does contain carbon monoxide, which can reduce the amount of oxygen in the body, it also contains other harmful pollutants that can cause respiratory problems and other health issues.