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Assuming the fuel is 100% ethanol the reaction is:
C2H5OH +3O2 --> 2CO2+3H20 or
1 mole of ethanol (46 g) creates 2 moles (44 x 2=88) of carbon dioxide
The density of ethanol is 0.78 g/cm3 or .78 kg/L
So the amount of carbon dioxide created by a car fueled by ethanol is about 1.56 kg/liter used.
This excludes CO2 from ethanol manufacture.
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∙ 14y ago
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How much does it cost to produce 1 gallon of ethanol?
it takes 1.5 gallons of fossil fuel to produce 1 gallon of ethanol.
How much ethanol does fermenting 100g of sugar produce?
Ethanol produces around 80% by fermenting 100g of sugar produce.
How much energy does it take to produce a gallon of ethanol?
couple hundred
How much Ethanol is in the fuel NASCAR uses or if any?
I don't believe that NASCAR is using ethanol. I know F1 race cars use it.
How can ethanol reduce carbon emissions?
Ethanol is a fuel made from plants. When we burn this fuel, it does emit carbon dioxide, but of course this was originally absorbed from the atmosphere by the plants, so there is no net increase in the amount of atmospheric carbon dioxide no matter how much ethanol we use (apart from a small amount produced by generating electricity used in the production of the ethanol). A disadvantage of using ethanol for motor fuel is that its production competes with food crops.
How much does Ethanol reduce emissions?
they have found that e85 does not reduce emissons as much as one would see affectave.. this is so because it takes fuel and emissions to produce the ethanol, so in a way it is almost sending all the emisions that the car would otherwise prevent in to the air... this is just the beginning of new fuel scorces yet to come in the us.. many companies are finding and reserching new tecnologies to make viehicles more fuel efficent...
How much fuel does the average car produce a year?
Produce means to make/manufacture. Cars dont produce fuel - please restate the question.
What pollutes more diesel fuel or ethanol fuel?
Diesel fuel emitts much higher emissions. It emitts high smog and particualte matter. That'll be diesal fuel darling. Madgenta
Does fermentation cheese whey produce more than 50 percent of ethanol?
Absolutely not. The fermentation process typically yields but 5% ethanol. Some claim to have derived as much as 10% ethanol during the fermentation process, but, these claims have yet to verified.
How is ethanol used as a fuel?
It's a combustible liquid, so it can be used pretty much the same way as gasoline is used.
Since we can make the very same ethanol fuel from cultivated grains with standard processes and from uncultivated biomass using bacteria why does one way produce less net carbon in the atmosphere?
First of all, you have to understand that the whole grain-ethanol thing is more of a back-door subsidy for corn farmers than an environmental initiative. That said, I'm not sure that either method of making ethanol results in a net reduction of carbon dioxide in the atmosphere. In the case of grain ethanol, it takes fossil fuels (in the form of diesel) to grow the corn. And some estimate that it takes more diesel fuel just to grow the corn than will be replaced by the resulting ethanol. So, you would be better off, in terms of fossil fuel usage, to just burn the diesel in cars and trucks. But fossil fuels are not the only fuels that put carbon dioxide into the atmosphere. Burning ethanol also releases carbon dioxide. Maybe not as much as fossil fuels, but whatever it produces would have to be added to the carbon dioxide that was produced in growing the corn. And that is most certainly more than the carbon dioxide that would have been produced by burning the fossil fuel directly in automobiles. In the case of uncultivated biomass, you don't have tractors and other fossil-fuel-burning equipment contributing to the carbon dioxide in the atmosphere. However, the process of converting uncultivated biomass to ethanol is much more energy-intensive than converting grain to ethanol. So you still have quite a bit of fossil fuel burning required to produce the ethanol. And you still have all the carbon dioxide released when the ethanol itself is burned.
How much of a bushel of corn is used to make ethanol?
Assuming the dry-milling method of ethanol production (the most common), one 56-pound bushel of corn makes 2.7 gallons of fuel ethanol and 17.4 pounds of dried distillers' grain. This means that 69% of the corn went into the ethanol.
