If the standard electrode potential for the cell Z n|Z n2+(a q) | C u2+(a q)| C u is 1.10 V then the maximum work done by this cell will be

Question

If the standard electrode potential for the cell Z n|Z n2+(a q) | C u2+(a q)| C u is 1.10 V then the maximum work done by this cell will be (A) −106.15 kJ (B) −212.30 kJ (C) −318.45 kJ (D) −424.60 kJ

Tardigrade Admin · Accepted Answer

Maximum work done by the cell W=-n Eo F where, n = number of electrons loss or gain Eo standard electrode potential of cell. F=1 F or 96500 C ∴ W=-2 × 1.1 × 96500 ∴ W=-212300 J 1000 J=1 k J ∴ W=-212.3 k J

Q. If the standard electrode potential for the cell $Z n ∣ ∣ Z n^{2 +} (a q) ∥ C u^{2 +} (a q) ∣ ∣ C u$ is $1.10 V$ then the maximum work done by this cell will be

−106.15 kJ

−212.30 kJ

−318.45 kJ

−424.60 kJ

Maximum work done by the cell $W = - n E^{o} F$
where, $n =$ number of electrons loss or gain $E^{o}$
standard electrode potential of cell. $F = 1 F$
or $96500 C$
$∴ W = - 2 \times 1.1 \times 96500$
$∴ W = - 212300 J {1000 J = 1 k J}$
$∴ W = - 212.3 k J$

Q. If the standard electrode potential for the cell Zn∣∣​Zn2+(aq)∥Cu2+(aq)∣∣​Cu is 1.10V then the maximum work done by this cell will be