question_answer

Aluminum oxide may be electrolysed at \[1000{}^\circ C\]to furnish aluminum metal (At. Mass \[=27\text{ }amu;\]1 Faraday = 96,500 Coulombs). The cathode reaction is \[-A{{l}^{3+}}+3{{e}^{-}}\to Al\] To prepare \[5.12\text{ }kg\]of aluminum metal by this method we require electricity of____ C

Answer:

\[(5.49\times {{10}^{7}})\]