The Gibb's energy for the decomposition of {\Al}_{2} {\O}_{3} at 500^\circ{\C} is as follows \frac{2}{3} {\Al}_{2} {\O}_{3} \to\frac{4}{3} {\Al}+{\O}_{2}, \\Delta_{r} G=+960 {\kJ} {\mol}^{-1}. The potential difference needed for the electrolytic reduction of aluminium oxide ({\Al}_{2} {\O}_{3}) at 500^\circ{\C} is at least (Mains 2013)

Class 12 NEET Chemistry Electrochemistry Questions

Question : 40 of 74

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The Gibb's energy for the decomposition of Al2O3 at 500°C is as follows

Al2O3→

‌Al+O2, ΔrG=+960‌kJ‌mol−1.
The potential difference needed for the electrolytic reduction of aluminium oxide (Al2O3) at 500°C is at least

(Mains 2013)

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