The following half-reactions indicate the reduction potentials for a galvanic ce
ID: 870503 • Letter: T
Question
The following half-reactions indicate the reduction potentials for a galvanic cell:
At standard conditions, what species are produced a each electrode?
(a) Cu is produced at the cathode and Fe at the anode
(b) Cu is pruduced at the cathode and Fe3+ ant the anode
(c) Fe is produced at the cathode and Cu+ at the anode
(d) Fe3+ is produced at the cathode and Cu+ at the anode
(e) Fe2+ is produced at the cathode and Cu+ is produced at the anode
please explain why
half-reaction Eo, V Cu+ + e- Cu 0.52 Fe3+ + e- Fe2+ 0.77Explanation / Answer
option (e) is the answer ,Because Cu electrode is having lower reduction potential compared to Fe, Hence Cu electrode is the anode and Fe electrode is the cathode . Always oxidation takes place at anode hence Cu+ is produced at anode and reduction takes place at cathode and it gains electron to produce Fe2+.
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