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I came across a video about a scooter that...
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You are currently reading a thread in /sci/ - Science & Math

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File: Electrolysis.svg.png (63 KB, 976x937) Image search: [iqdb] [SauceNao] [Google]
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I came across a video about a scooter that runs on water on Facebook and everybody is talking about how this could be used but gas companies kill people who bring it forth etc....

So I thought I'd do my own calculation on it but not being a scientist and only getting basic chem about 10 years ago I got stuck, here's what I have so far:

Water = H2O (2 Hydrogen molecules for each Oxygen molecule)

Energetic Value Hydrogen = 141,86 MJ/kg on burning and you need 1 Oxygen molecule per 2 Hydrogen molecules in order to burn it. (https://en.wikipedia.org/wiki/Energy_density)

1l water = 1kg
1l water = 666g H, 333g O

0,666kg * 141,86 MJ/kg = 94,48 MJ

1MJ = 0.28kWh

=> 94,48 MJ * 0.28kWh/MJ = 26,45Wh

So if I split water using electricity I'd get about 26Wh of energy from it if I burn it, but I can't find how much energy I need to split one liter. I've read you can use a 9V batterij for example, but how much mAh should it have to split 1 liter?


Video:
fb...............com/funkyouentertainment/videos/451129475011670/
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>>7776328
>So if I split water using electricity I'd get about 26Wh of energy from it if I burn it, but I can't find how much energy I need to split one liter.

The exact same amount. Or realistically, more than that, since no process is going to be 100% efficient.

It is physically impossible for any cycle (in this case water to H and back again) to result in a net gain in energy.
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>>7776420
> in this case water to H and back again

What do you mean back again, it just has to go to H, not back again?

I just found this post however:
https://www.quora.com/How-much-water-can-you-split-into-hydrogen-and-oxygen-using-electrolysis-with-one-kilowatt-hour-of-electricity
"1 kilowatt hour of electricity can split about 270 grams of water"

270g water would give an energy of about 7,14Wh, meaning you'd have less then 10% efficiency, so that settles all the bullshit gas companies hiding the free energy from us.
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HHO engines are an OLD scam and have never actually worked.
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>>7776458
>What do you mean back again, it just has to go to H, not back again?

Burning hydrogen results in water. Burning is just combining with oxygen. H + O is H2O. So yes, if you split water and then burn the hydrogen you end up back where you started.
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File: PSU_bond.png (41 KB, 367x131) Image search: [iqdb] [SauceNao] [Google]
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>>7776328
>can't find how much energy I need to split one liter
Forget pleb physics, find the secret patent.
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File: 1444196098261.jpg (106 KB, 960x567) Image search: [iqdb] [SauceNao] [Google]
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>>7776489
>l o l
>>
>>7776328
So... Just an electrical veicle?

H2O + energy = H2 + O2 = H2O + energy

Doesn`t make sense.

The only way to obtain serious amounts of energy is taking matter and turning into energy
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