electrochemical cell

Discussion in 'Chemistry' started by Chatha, Nov 7, 2007.

  1. Chatha big brown was screwed up Registered Senior Member

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    In an electrochemical cell, say a galvanic cell, if 2 electrons leave the anode for the cathode, do you have to always reduce the cathode side with 2 electrons? or can you use 1 electron when you can?
     
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  3. James R Just this guy, you know? Staff Member

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    I don't see any problem with reducing 1 electron at the cathode. You'll just use up your cathode material twice as fast as the anode material.
     
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  5. Chatha big brown was screwed up Registered Senior Member

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    yes, I looked it up, you can use 1 or 2. Actually, 2e's gives the same standard reduction potential as 1 e. Additionaly, using 1 or 2 doesn't matter in nenst equation either; due to the mathematics of the equation. Thanks
     
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