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the new cars will be powered by hydrogen as a result they will produce water, cool ah.the thing is that if you split H2O you get oxygen that it will go to the air and hydrogen that you ll gather to a tank, so when water ends the machine will take hydrogen from the tank and oxygen from air and mix it together creating water and filling the water tank. so when 1 fuel is out the other will power the car refilling the fuel and over again.(sorry 4 my English im from greece :P)
sent2john, Jul 14 2008
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Energy is released when hydrogen and oxygen are combined. The resulting water contains no energy. The H2 and O2 in water must be separated to create usable energy. That separation requires an input of energy from some other source to invest in it energy potential.
What keeps the whole thing from exploding in your face in a crash? You can't trust consumers with pure hydrogen. Not enough water for that situation.
Hydrogen used for fuel cells is kept in a less reactive state than "free" hydrogen. Transforming it to and from that state takes even more energy that isn't accounted for.
the thing is that there have already been created cars that run with hydrogen :( converting it to water........ in time there will be a way breaking the water elements withought needing so much energy. hopefully
They are working of safe hydrogen tanks for street automobiles.