فصل الاوكسجين عن الهيدروجين

step 1Electrolysis of Water - An Explanation

This section is an explanation of the electrolysis of water, feel free to skip it if you don't find it interesting.

2H2O(l) = 2H2(g) + O2(g)

As everyone knows a water molecule is formed by two elements: two
positive Hydrogen ions and one negative Oxygen ion. The water molecule
is held together by the electromagnetic attraction between these ions.
When electricity is introduced to water through two electrodes, a
cathode (negative) and an anode (positive), these ions are attracted to
the opposite charged electrode. Therefore the positively charged
hydrogen ions will collect on the cathode and the negatively charged
oxygen will collect on the anode.

When these ions come into contact with their respective electrodes they
either gain or lose electrons depending on there ionic charge. (In this
case the hydrogen gains electrons and the oxygen loses them) In doing so
these ions balance their charges, and become real, electrically
balanced, bona fide atoms (or in the case of the hydrogen, a molecule).

The reason this system isn't very efficient is because some of the
electrical energy is converted into heat during the process. There have
been reports of 50%-70% efficiency, but I doubt that is possible in a
home environment. Anyway, enough with the boring stuff, lets go make
some gas!