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Electrolysis of water - Bubble control

  1. Aug 27, 2008 #1
    Hi to all!

    In the simple electrolysis of water, may you point me in the right direction with regards to:

    1) Rate of evolution

    2) Bubble size control

    As in what parameters will affect the above (eg voltage? diameter of exposed wire? length of exposed wire? salt content?)

    Better still if you could direct me to an accepted method of doing the above.

    Thank you in advance!

  2. jcsd
  3. Aug 27, 2008 #2


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    You need the right voltage for the electrolysis to occur, different reactions occur faster at different voltages. The diameter of the wire should not be a factor when the voltage is taken into account, are you utilizing a potentiometer? You may want to curl up the wire to increase the length that is exposed in the solution. Salt content is going to be a factor as it is relevant to the flow of charge throughout the solution.
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