For O2,ΔG=−nFE∘ E∘=−n FΔG=−2×96,500−8,27,000=4.28 Minimum EMF required to carry out electrolysis of Al2O3 =24.28=2.14 V
On the basis of information available from the reaction 4 3 Al+ O_2 → 2 3 Al_2 O_3, Δ G=-827 ~kJ mol^-1 of O_2, the minimum e.m.f required to carry…
NEET UG 2003 — Chemistry Physical Chemistry
2003mcqmedium
On the basis of information available from the reaction 34Al+O2→32Al2O3,ΔG=−827 kJmol−1 of O2, the minimum e.m.f required to carry out an electrolysis of Al2O3 is (F= 96500Cmol−1):
Official previous-year question
Held on 30 Apr 2003 · Verified 9 Jul 2026.
Options
- A
2.14 V
- B
4.28 V
- C
6.42 V
- D
8.56 V
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