Two galvanic cells, G and H

CHEMISTRY · Single correct · AP · Chemistry · Thermodynamics and Electrochemistry · Thermodynamics and Electrochemistry

Problem

Two galvanic cells, G and H, each have a standard cell potential of

0.80\,\text{V}

. For both cells at a particular moment the reaction quotient is

Q=10

. Cell G: balanced overall reaction involves

n=1

electron. Cell H: balanced overall reaction involves

n=2

electrons. Which option best describes how far the instantaneous potential

E

of each cell is below

E^{\circ}

298\,\text{K}

? (a) Cell G is about

0.030\,\text{V}

below

E^{\circ}

, while Cell H is about

0.059\,\text{V}

below

E^{\circ}

. (b) Both cells are about

0.059\,\text{V}

below

E^{\circ}

. (c) Cell G is about

0.059\,\text{V}

below

E^{\circ}

, while Cell H is about

0.030\,\text{V}

below

E^{\circ}

. (d) Cell G is about

0.026\,\text{V}

below

E^{\circ}

, while Cell H is about

0.013\,\text{V}

below

E^{\circ}