According to Wikipedia Faraday's electrolysis law is
[tex]n_i = \frac{Q_{passed}}{Fz_i}[/tex]
Where n_i is moles of species i, which has charge z_i, liberated at electrode. Q_passed is the charge that has passed, which is function of time t.
How is this law derived and are there any approximations taken - is it exact if Q_passed is an exact function of t? e.g. surely it only works if reaction is considered irreversible. So, how do we calculate n liberated precisely - e.g. along Butler-Volmer lines?
[tex]n_i = \frac{Q_{passed}}{Fz_i}[/tex]
Where n_i is moles of species i, which has charge z_i, liberated at electrode. Q_passed is the charge that has passed, which is function of time t.
How is this law derived and are there any approximations taken - is it exact if Q_passed is an exact function of t? e.g. surely it only works if reaction is considered irreversible. So, how do we calculate n liberated precisely - e.g. along Butler-Volmer lines?
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