Question

Consider the following reaction: 2Fe2+(aq) + Cu2+ → 2Fe3+(aq) + Cu. When the reaction comes to...

Consider the following reaction: 2Fe2+(aq) + Cu2+ → 2Fe3+(aq) + Cu.

When the reaction comes to equilibrium, what is the cell voltage (Ecell)?

A.

1.11 V
B.

–0.43 V
C.

0.78 V
D.

0.43 V
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Answer #1

Ans. This is standard cell voltage , Therefore option B is correct if it is standard cell voltage according to option given

Cell voltage =0 V at equilibrium because ∆G=0 at equilibrium

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