// multi-utility computation suite · offline · instant · precise
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sci.electrolysis-Faraday-law Calculator
Calculates mass deposited or gas produced in electrolysis: m = MIt/(nF), and electric charge required for a given mass from Faraday's law. Producing 1 kg of aluminium by Hall-Héroult electrolysis requires Q = 10⁷ C (≈2.78 kWh/kg in charge) plus ~13 kWh/kg electrical energy in total.
Inputs
I A
Rate of charge flow (A). I = V/R. Above ~100 mA through the body can be lethal. Fuses protect against overcurrent.
T S
Duration of the process. Make sure units match the rate inputs (seconds, minutes, or hours).
M G Mol
Mass of one mole of the substance (g/mol). Found by summing atomic weights. Converts between grams and moles.
N Electrons
Reference formula or conversion factor shown for context.
Efficiency Pct
Useful output divided by total input, as a percentage. 100% is impossible due to losses (heat, friction, resistance).
Results
mass deposited m (g)
The computed mass of the object or substance.
charge passed Q (C)
Reference formula or conversion factor shown for context.
moles deposited
Quantity in moles. 1 mol = 6.022 x 10^23 particles. Moles = mass / molar mass.
Faraday: m = Q·M·η/(n·F)
Sample size or count used in the calculation.
current efficiency η
Useful output divided by total input, as a percentage. True 100% efficiency is impossible — losses appear as heat. LEDs: 30–50%. Electric motors: 85–97%. Switching supplies: 85–95%.
example
Reference formula or conversion factor shown for context.