Can anyone explain to me the problem with burning oil, gas and coal? I know it's bad for the enviroment.. but can i have a more indepth answer? Thanks in advance.What is the problem with burning oil,gas and coal?
Two problems: air pollution caused by incomplete combustion, and the CO2 (a product of complete combustion). Technology has reduced the amount of air pollutants, but still has a ways to go. The CO2 in the atmosphere acts like the glass in car windows on a sunny day. Infrared radiation is a section of the electromagnetic spectrum, below the color red in the visible section. The infrared radiation from the sun is of a different frequency than the infrared radiation from heated surfaces. The former will pass through the glass (and through the atmosphere), but the latter doesn't go back through the glass (or CO2 in the atmosphere) as easily. That's why the inside of the car gets quite hot, and why our atmosphere is warming up.What is the problem with burning oil,gas and coal?
Oil, gas, and coal are known as hydrocarbon fuels which means that they are composed of hydrogen and carbon. When they react with the air, the products of the reaction are mostly carbon dioxide and water, but you can also have carbon monoxide, nitrogen oxides, and soot (large particles that are made up of mostly carbon).
The only product of the reaction that isn't an environmental problem is water. All of the other products are detrimental to the environment or to people.
Carbon dioxide is the most publicized problem right now. Although carbon dioxide makes up only a very small (%26lt;1%) fraction of the atomsphere, it can trap heat from the sun and is slowly warming our planet. This is a very difficult problem because the world is extremely reliant on hydrocarbon fuels and it will be extremely difficult to switch to a sustainable form of energy before the carbon dioxide levels reach a dangerous level.
The product of soot is bad for inhalation and also absorbs the energy from the sun and contributes to global warming. Generally, soot formation occurs when there is an excess of fuel relative to the amount of air present.
Nitrogen oxides form in very high temperature flames (the nitrogen comes from the 79% nitrogen in the air). Nitrogen oxides lead to the formation of smog which pollutes urban areas. This can result in the formation of acid rain. Because nitrogen oxides only form in high temperature flames, it is possible to reduce their formation by lowering the flame temperature of the combustion reaction by either having an excess or a deficiency of the fuel in the chemical reaction.
Carbon monoxide is a toxic gas. Luckily, carbon monoxide is only a major product when there is an excess of fuel relative to the oxygen in the reaction. The possibility of carbon monoxide formation during hydrocarbon combustion is the reason that we have CO detectors in our homes.
They release lots of CO2 when burnt and this can cause global warming due to the green house effect. Basically the CO2 acts as a barrier to heat escaping the earths atmosphere, and so the earth heats up leading to ice caps melting etc..
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