Atomic StructureHard

Question

A variable, opposite external potential (Eext) is applied to the cell Zn|Zn2+ (1 M) || Cu2+ (1M) | Cu, of potential 1.1 V. When Eext < 1.1 V and Eext > 1.1 V respectively electrons flow from :

Options

A.Cathode to anode in both cases
B.cathode to anode and anode to cathode
C.anode to cathode and cathode to anode
D.anode to cathode in both cases

Solution

Electrons flow from anode to cathode always.

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