Electrolysis of water
Electrolysis of water
(OP)
Sorry, but it's been a while since high school chemistry -How much pressure (hydrogen and oxygen) could I expect to develop in a closed two part vessel if I applied, say 24V to water? (assume continous water supply to reach equilibrium) How much would that pressure increase if I increased V? Thanks - Brian.





RE: Electrolysis of water
<nbucska@pcperipherals.com>
RE: Electrolysis of water
Thanks - Brian.
RE: Electrolysis of water
Maybe the reaction would slow as the concentrations of hydrogen and oxygen dissolved in the water reached the saturation level. As the gas pressure increased it would slow the evolution of new gas from the liquid. This might inhibit bubble formation around the electrodes.
Or, the reaction might slow as the pressure of the gas above the water approached the pressure of the gas inside the newly forming bubbles so that new bubbles would not be inclined to form and rise anymore. This sounds more plausible. It is possible to calculate the pressure inside a bubble of a given diameter. It probably requires knowing the surface tension of the water/electrolyte solution and depth of the bubble. I've seen these kinds of figures long ago, I wish I could tell you where.
RE: Electrolysis of water
http://www.hsssi.com/Applications/EChem/Background/waterelec.html
http://my.voyager.net/~jrrandall/BublGen.htm
http://arxiv.org/PS_cache/physics/pdf/0103/0103015.pdf
http://www.meheen-mfg.com/tankcarb.html
http://www.aardvark.co.nz/pjet/h20box.shtml
http://www.enaa.or.jp/WE-NET/report/1999/english/08.html
RE: Electrolysis of water
RE: Electrolysis of water
Hope that did'nt muddy the water too much.
Dave Orlebeke
Aquatic Technologies