Q:For a research project my topic is hydrogen fuel cells, I need to answer some questions about it.For the life of me I cannot find a good website that has the information I need. If anyone can give me a website or answer some questions I have I'd greatly appreciate it.Which countries use hydrogen fuel cells.How much of their total energy is being supplied by that form?Is our country using hydrogen fuel cells? If so, how much are we producing and what percent of our total energy use is from the source?What are the advantages and disadvantages of hydrogen fuel cells?Is it expensive (cost effective or not?) to use hydrogen fuel cells?Compare the cost of one watt of electric power that we obtain from hydrogen fuel cells to one watt produced by burning coal.If you could either answer these questions for me or give me a site I can find it would help me alot.

Fuel cells are at least twice as efficient as internal combustion engines, have no moving parts, require little maintenance, and produce little or no pollution depending on how their hydrogen fuel is produced. Most major automobile companies have developed prototype fuel-cell cards and hope to have a variety of affordable fuel-cell cars on the market by 2020 and greatly increase their use by 2050. These cars would depend on a new network of hydrogen filling stations. General Motors (GM) developed a prototype of the fuel-cell car in 2002. Such a car as this would have a fuel efficiency of more than 100mpg. This is all I have for you regarding this topic.

Q:good things and bad things about it

Good Things About Hydrogen

Q:Hey, I need an exact estimate on how much it would cost to convert your gasoline car into a hydrogen car. I would like to know how much would it cost if you do it yourself and if you took it to a car center. Thank You

Not much if you know what you are doing. A Philippine man did it 30 years ago and the world has yet to catch up to what he did.

Q:How does a fuel cell separate the oxygen from the other elements in the air (considering that ambient air is a logical oxygen source for a fuel cell)?thnx ;)

ambient air isn't used as the oxygen source for a fuel cell - sorry, I can't go into more detail than that.

Q:From what I've read about powered armor in development by the military the largest problem is a reliable, light, and small power source. Would fuel cells be the answer?

Direct okorder

Q:and tell me whycuz me and my bro have been arguing over it

Depends what you're comparing it to. They are better for the environment than gas cars, but worse than electric cars. But most importantly, they're completely impractical. Honda is hoping to get the cost of their fuel cell car down below $100k in the next decade. Yes that's right

Q:Homework kind of sucks.

Yes hydrogen makes near zero pollutants if we use fuel cells which are still very costly partly because they use platimum as the catalyst. We already use enough hydrogen for 10 million cars, mostly made from natural gas and water. The other product carbon dioxide is released into our atmosphere, so hydrogen is worse than gasoline until we start making hydrogen some other way, which will make hydrogen twice as costly as gasoline; Likely more than twice. Hydrogen is better only if the electricity for electroysis is free and a use can be found for a huge amount of oxygen. At high cost we could obtain enough hydrogen (for one million cars) that is presently leaking into Earth's atmosphere, but Earth needs thousands of times more vehicles than one million.

Q:A list of like the top energy sources with fuel cells would be really great.

Fuel cells aren't a source of energy, they are devices that extract chemically stored energy. If that chemically stored energy (fuel) is from a fossil reserve then it's not a renewable source of energy (at least not renewable in our lifetimes) but if it's produced by solar or wind power then it's renewable. Note that when Sandia Labs researched more efficient ways of producing hydrogen using solar energy, they realized that they could also produce hydrocarbon fuels so in fact fuels such as gasoline could also be renewable energy sources if synthesized from solar energy as was done with the CR5 reactor.

Q:I can't find the answer and i was hoping someone else knew itPlease cite your source if you know!

There is a lot that might need more definition within the wording of your question. What is a greenhouse gas? There are many. Water vapor is a greenhouse gas. Carbon dioxide is a greenhouse gas. Methane is a greenhouse gas. Do you think that anyone has measured the amount of sweat put out by workers building fuel cells? Or how many times per minute and how much carbon dioxide they have exhausted while breathing. There may be some measurement of the amount of energy (other than human) that has been used to build fuel cells but what of all the components that have come to that point. What about the pollution released in transporting each component to the point where it is used. The problem with these kinds of calculations is that at some point they become just conjecture or defined so narrowly that they become meaningless. Perhaps if you could give some idea of where you were heading with this information it might be easier to make some guesses. Although this is supposed to be the information age, I doubt any realistic information actually exists on this.

Q:Co2H2Ooxyr2d2

H2O