0
In terms of energy expended, it is.
Now here's the thing: Everyone talks about how sexy a hydrogen fuel cell is--the exhaust is just water, right? Well...you gotta get your hydrogen from somewhere because it doesn't exist on earth as free hydrogen. You can either pull it out of water (which requires a LOT of energy to do--more than you get from using the hydrogen) or you can pull it out of methane (which generates carbon dioxide).
I think they need to forget using hydrogen and go with methane fuel cells instead. Methane is easy to get--either as natural gas or by making it from manure. It is more hydrogen dense than elemental hydrogen, as one methane molecule contains four hydrogen atoms whereas one hydrogen molecule contains only two. And decades of experience with Compressed Natural Gas and LPG vehicles have taught us exactly how to store it in a car--something we're still working on with hydrogen. In use in a fuel cell two methane molecules produce one carbon dioxide plus four water molecules. Bubble the "exhaust" through a solution of calcium hydroxide--which they sell as "slaked lime" in every garden store in America--and it traps the CO2 to produce calcium carbonate, a chemical that's very easy to sell because there are so many uses for it.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What has more mass hydrogen or helium?
Helium has more mass than hydrogen.
Is hydrogen more dangerous than oxygen Why?
Hydrogen is dangerous than Helium because Hydrogen is a stronger gas than Helium.
Why hydrogen diffuses four times more than helium?
because the mass of hydrogen is less than that of helium
Explain why chlorine gas is collected at a slower rate than hydrogen?
Because the weight / density of chlorine is more than hydrogen. Hence the rate of displacement will be less than that of hydrogen.
Why does the base for the atomic mass unit change from hydrogen to carbon?
hydrogen has more binding energy than carbon
Why can't hydrogen be a productive fuel source?
Because it takes more energy to make the hydrogen than you get back by burning it.
Is hydrogen more electronegative than sulfur?
Sulfur is more electronegative than hydrogen
Are coins more money to produce than they cost?
Some are. Pennies actually cost 1.6 cents each to make. Coins of greater value are often worth more than they cost to make.
Is potassium more reactive than hydrogen?
Yes, Potassium is more reactive than hydrogen.
What has more mass hydrogen or helium?
Helium has more mass than hydrogen.
Why atomic hydrogen is more reactive than nascent hydrogen?
nascent hydrogen is much more reactive than ordinary hydrogen because it is produced in situ,itmeans that as it is produced it is consumed in another reaction. It is unstable that is why much more reactive than atomic hydrogen.
Is hydrogen more dangerous than oxygen Why?
Hydrogen is dangerous than Helium because Hydrogen is a stronger gas than Helium.
Why is hydrogen bonding more extensive in water than hydrogen fluoride?
because it is hotter than hydrogen flouride
Why does food cost so much more at a ballpark than a store?
because a ballpark food cost more than a store because they can make money
Why did Edward Teller make the hydrogen bomb?
He created it to be more powerful than the atomic, and fission bomb.
Are there are more hydroxide ions than hydrogen ions?
In a solution with a pH higher than 7, there are more hydroxide than hydrogen ions.
Why is atomic hydrogen reactive than nascent hydrogen?
nascent hydrogen is much more reactive than ordinary hydrogen because it is produced in situ,itmeans that as it is produced it is consumed in another reaction. It is unstable that is why much more reactive than atomic hydrogen.
