Yes, it burns better than any other fuel. It's a fuel, but it's not a **fuel source.** This is what I and Ed2000 were referring to. (This is rather, what I thought he was referring to.)
The shortcoming for hydrogen is it's not a fuel found in nature on the earth. Thus, it can't be a replacement for plentiful fossil fuels. All systems for creating it (splitting water, for example) require more energy to be put into it than you will get out of it.
Thus, it's not an fuel source in the real world. Whereas, chemically speaking, it's a fuel, and the best one, it can't replace any fuel source in this economy, like oil, like coal, like uranium, like things found in nature that have a net positive energy output for our society. It can't really take up any percentage of our energy expenditure. It can, however, make the expenditure very efficient and polution free when we do burn it.
Yes, I know something of chemistry, but I know something about how it applies to the real world, too.
(In case you will nitpick on this point, I also know that, chemically speaking, it takes an equivalent energy to split H2O as you get when you burn the H2 back into water. However, after you apply the second law of thermodynamics, I'm afraid your going to lose energy. So, the split & burn method is a net energy loser. The only way to overcome this is a large energy source, to split the H20 molecule, like nuclear power.)
-- Modified on 4/24/2005 9:17:26 AM
-- Modified on 4/24/2005 9:24:47 AM