Electrolysis of water, an energy cost.

 How much electrical energy via electrolysis would it take to create 1 litre of elemental hydrogen mixed with elemental oxygen, and how long would this take?
craige1Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

craige1Author Commented:
please state what type of anode and cathode would work best and iff poss some litrature or journals on this subject.
0
ozoCommented:
1 litre of hydrogen at STP is 1/22.4 moles.
the heat of fusion of water is 1436 cal/mole, while the heat of fusion of H2 is 28 cal/mole and O2 is 106.3 cal/mole, the difference is 1355 cal/mole, but you probably won't recover the energy of the O2 recombining
65 cal = 269.5 joules
2/22.4 moles of electrons is 3356 coulombs or 3356 amp seconds
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
grg99Commented:
Theoretical or practical?    

 There are considerable losses that are going to make the theoretical numbers kinda off the mark.

0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Math / Science

From novice to tech pro — start learning today.