Verified Solution • 2025–26 Session moderate

QPages 218-219: Q16: HC Verma: Concepts of Physics - Volume 2 Thermal and Chemical Effects of Electric Current Pages 218-219: Q16 Solution: Find the charge required to flow through an electrolyte to…

Find the charge required to flow through an electrolyte to liberate one atom of a) a monovalent material and b) a divalent material.

Step-by-Step Verified Solution

**Answer:** (a) 1.6×10−191.6 \times 10^{-19} C (b) 3.2×10−193.2 \times 10^{-19} C. **Step-by-Step Explanation:** (a) Monovalent: 1 mole of atoms requires 96500 C. q=96500/(6.023×1023)=1.6×10−19q = 96500/(6.023 \times 10^{23}) = 1.6 \times 10^{-19} C. (b) Divalent: equivalent mass = half mole. q=2×1.6×10−19=3.2×10−19q = 2 \times 1.6 \times 10^{-19} = 3.2 \times 10^{-19} C .

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