How much electricity is requirred to produce 40g Al from molten Al2O3?
Siddhi , 5 Years ago
Grade 12
Physical Chemistry> How much electricity is requirred to prod...
2 Answers
Mayank
Last Activity: 5 Years ago
we have W=MQ/xF where M = atomic mass of Al Q=charge in columb x=valency factor F=faraday’s constant=96500
now we have 40=(27*Q)/(3*96500) // note: valency factor of Al is 3
putting values as above we get Q=428,888.888 C
Khimraj
Last Activity: 5 Years ago
electricity requirred to produce 27g Al2O3 = 3F
electricity requirred to produce 40g Al2O3 = 3*40/27F = 4.44 F
Hope it clears........................
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