Electrolysis calcul with faraday

[cancerman]

Hello felow's my boy of 15 years old asked a question about an exercice at college, he asked me how much electricity it would take to generate electrolysis on a sea surface of 100 feet wide and half a mile long.

I told him (jocking) you may use some kind of nuclear facilities

I thought using Faraday loies could help me but I'm buging, thank you advice in any case

matt's

 

[BvU]

Hello and

First of all you need a lot of cable .

But the electrochemical processes do not really depend on the distance between the electrodes: the sea can be supposed to be at zero potential and the processes are driven by potential difference.

If you want to electrolyze a substantial amount of sea water, you need a lot of current and thereby a lot of electrode area.

And the fish won't be all that happy with the chemical products !

 

[cancerman]

Hello BvU

first thank you for your answer it's nice :) i will tell him about the electrodes first.

so for your what kind of energy are we talking ?maping 100 feet wide and half a mile long of multiple electrode. Fish may won't be all that happy you right , a good way of fishing lol

 

[BvU]

Problem example 2 in http://www.chem1.com/acad/webtext/elchem/ec8.html works it out: 5580 MegaJoule for 1000 kg of Cl₂.
The 100 ft and the half mile don't really come into it - except that you need a lot of area and small distance between cathode and anode to get down to the cells operating at 2 Volt.

So what's the problem formulation for this exercise at college ? Sounds ambitious !

 

[cancerman]

example 2 look good thank you for the link BvU, yes i think the formulation is wrong somewhere, i will ask the professor

thank you