1
Anode and cathode: defined by the reaction
Anode = oxidation, cathode = reduction, in a galvanic cell and in an electrolytic cell alike. Mnemonic: An Ox, Red Cat. In the external circuit, electrons always travel from the anode to the cathode.
University12 min
Galvanic or electrolytic cell: electrodes, terminals and Faraday's law
Name the anode and cathode without getting the sign wrong, link emf to Gibbs energy, and compute a deposited mass from a current and a duration.
The essentials
2
The terminal signs swap
Members only
3
The Daniell cell, the model to know
Members only
4
Emf and Gibbs energy
Members only
5
Faraday's law
Members only