Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryElectrochemistry2 Marks
Question
State and explain Faraday’s second law of electrolysis.
✓
Answer
Two cells are connected in series. They contain different electrolytes. Same quantity of electricity is passed through them. In other words, the number of moles of electrons passed through two electrolytes is same. Moles of A produced in one cell = moles of electrons actually passed × mole ratio of A half reaction Mole of B produced in other cell = moles of electrons actually passed × mole ratio of B half reaction Hence, $\frac{\text { moles of } A \text { produced }}{\text { moles of } B \text { produced }}=\frac{\text { mole ratio of } A \text { half reaction }}{\text { mole ratio of } B \text { half reaction }}$
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