using hydrogen fuel what happens when?

Question

after you extracted the hydrogen and burn the gas it turns into steam? what if any are the losses is it 100% renewable and if so why are we not using nuclear energy and hydrogen fuels

also on the atomic level is the any changes when the hydrogen is burned as for free radicals

Answer 1

The combustion process may be 100% efficient (although not necessarily) but the conversion of that energy to useful work won't be.

Unfortunately H2 isn't that easy to find in large, easily accessed quatities, it does not form a significant fraction of the atmosphere so where would be get it from?

Nuclear energy is contentious on the grounds of political acceptability and its true 'green credentials'

Answer 2

It is a mistake to think of hydrogen as a fuel.
There is no free hydrogen around.
It is not renewable, it must be made.
Getting it costs more energy than you
will get out of burning it.
The only advantages of hydrogen are:
its easy use in fuel cells. and,
it's, (strictly local), cleanliness.
It makes more sense to consider hydrogen
as an energy storage medium.

The burning is a chemical reaction, too
simple to involve 'free radicals`.

Answer 3

2*H2 + O2 --> 2*H2O

There are many losses in hydrogen, everywhere from generating it to storing it to transporting it to finally using it. There are so many losses that currently it takes more energy to make/store/transport hydrogen than we get out of it. So that's why we're not using very much hydrogen.

People do use a lot of nuclear power. The reason we don't use more? Chernobyl.