Posted by Thermodynamics? on March 21, 2008 at 07:18:53 from (99.224.207.80):
In Reply to: Engine combustion. posted by dej(jed) on March 21, 2008 at 05:01:32:
Farmer boy, the reason you can't reverse the whole thing and make gas or diesel out of CO2 and O2 is because the burning of the fuel gives off all that energy to plow your field and to reverse that reaction it would take the same amount of energy that burning the fuel gives off. So basically it wouldnt be worthwhile even if it could be done.
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