November 25, 2024, 06:36:11 PM
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Topic: Units regarding standard reduction electrode potential and gibbs free energy  (Read 2296 times)

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Offline lokifenrir96

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Hi, this is regarding the units used for standard reduction electrode potential:

Why is it J/Cmol? I can understand if it's Joules per mole of electrons that flows past the device, or Joules per coulomb of charge, but why Coulomb moles? Even if you say it's because the charge on electrons is measured by coulombs, shouldn't it be (no. of moles) times 1.61x10^-19 coulombs to find the charge per mole?

Next, what about the units of delta G in the equation delta G = -nF(Enought value)? It is given as J/mol, but what does the mole refer to? Does it refer to a specific reactant or product, or per mole of the given equation?

Thanks!

Offline Borek

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Where did you got J/Cmol from? Potential is given in V, so J/C.
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