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How much electricity is required in terms of faraday to reduce 1 mole of Al2O3 into Al.

How much electricity is required in terms of faraday to reduce 1 mole of Al2O3 into Al.

Grade:12th pass

1 Answers

Arun
25750 Points
4 years ago

Charge on Al in Al2O3
2Al  + 3O = 0 
Oxygen has –2 
2Al +3(–2)   = 0 
Al         = 3 
Change transfer  n = 3 
Charge required for 1 mol of Al    = 3F
Number of moles of Al  = 40 /27  = 1.48

The electricity required to produce 1.48 mol of Al = 1.48  × 3 F 
= 4.44 F

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