Consider the galvanic cell, $\mathrm { Zn } ( s ) \left| \mathrm { Zn } ^ { 2 } + ( a q ) \right| | \mathrm { Pb } 2 + ( a q ) | \mathrm { Pb } ( \mathrm { s } )$ Which one of the following changes to the cell would cause the cell potential to increase (i.e.,become more positive)?

Question

Quizplus · Accepted Answer

Increasing the concentration of Pb²⁺ will shift the equilibrium towards the reduction of Pb²⁺ to Pb, increasing the cell potential according to the Nernst equation.

Consider the Galvanic Cell Zn(s)∣Zn2+(aq)∣∣Pb2+(aq)∣Pb(s)\mathrm { Zn } ( s ) \left| \mathrm { Zn } ^ { 2 } + ( a q ) \right| | \mathrm { Pb } 2 + ( a q ) | \mathrm { Pb } ( \mathrm { s } )Zn(s)​Zn2+(aq)​∣Pb2+(aq)∣Pb(s)

Consider the Galvanic Cell $\mathrm { Zn } ( s ) \left| \mathrm { Zn } ^ { 2 } + ( a q ) \right| | \mathrm { Pb } 2 + ( a q ) | \mathrm { Pb } ( \mathrm { s } )$