Q. Which one of the following condition will increase the voltage of the cell represented by the equation? $Cu\ (s)\ + \ {2Ag}^{+}\ (aq) \rightleftharpoons {Cu}^{2 +}\ (aq)\ + \ 2\ Ag\ (s)$
A) Increase in the dimension of Cu electrode
B) Increase in the dimension of Ag electrode
C) Increase in the concentration of ${Cu}^{2 +}$ ions
D) Increase in the concentration of ${Ag}^{+}$ ions
Explanation
(d)
Since, reduction occurs at Ag electrode hence, increase in the concentration of ${Ag}^{+}$ or decrease in concentration of ${Cu}^{2 +}$ will increase the voltage.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.