Q. For the cell, $T1\ |\ {T1}^{+}\ (0.001\ M)\ ||\ {Cu}^{2 +}\ (0.1\ M)\ |\ Cu$ $E_{cell}$ at 25℃ is 0.83 V. $E_{cell}$ can be increased
A) By decreasing [${Cu}^{2 +}$]
B) By increasing [${Cu}^{2 +}$]
C) By increasing [${T1}^{+}$]
D) None of these
Explanation
(b)
$E_{cell}$ = $E_{cell}^{{^\circ}}$ + $\frac{0.0592}{n}$ log $\frac{\left\lbrack {Cu}^{2 +} \right\rbrack}{\lbrack{T1}^{+}\rbrack^{2}}$
$n\ = \ 2$
∴ According to above equation $E_{cell}$ can be increased by increasing [ ${Cu}^{2 +}$].
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.