Question

Which of the following is correct for a voltaic cell constructed with Fe/Fe2+ and Zn/Zn2+? Fe2+...

Which of the following is correct for a voltaic cell constructed with Fe/Fe2+ and Zn/Zn2+?

Fe2+ + 2 e -> Fe (ΔG° = 84.9 kJ/mol)

Zn2+ + 2 e -> Zn (ΔG° = 146.7 kJ/mol)

A) The Fe electrode is the anode, and electrons flow from Fe to Zn

B) The Fe electrode is the anode, and electrons flow from Zn to Fe

C) The Zn electrode is the anode, and electrons flow from Fe to Zn

D) The Zn electrode is the anode, and electrons flow from Zn to Fe

The answer is D. Please completely explain why.

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