1. Tardigrade
  2. Question
  3. Chemistry
  4. On the basis of the information available from the reaction, 4 / 3 textAl + textO2 arrow 2 / 3 textAl2 textO3 text; textΔG = - 827 textkJmol- 1 , the minimum e.m.f. required to carry out electrolysis of Al2O3 is (.F=96500 Cmol- 1.)

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. On the basis of the information available from the reaction,
$4 / 3 \text{Al} + \text{O}_{2} \rightarrow 2 / 3 \text{Al}_{2} \text{O}_{3} \text{;} \, \text{ΔG} = - 827 \text{kJmol}^{- 1}$ , the minimum e.m.f. required to carry out electrolysis of $Al_{2}O_{3}$ is $\left(\right.F=96500 \, Cmol^{- 1}\left.\right)$

NTA AbhyasNTA Abhyas 2022

Solution:

$\Delta G=-nFE^\circ $
$E^\circ =\frac{\Delta G}{- n F}-\frac{- 827000}{- 4 \times 96500}=2.14$