MCQ
Resistance of a decimolar solution between two electrodes $0.02\,\,meter$ apart and $0.0004\,\, m^2$ in area was found to be $50\,\, ohm.$ Specific conductance $(k)$ is .......... $\mathrm{S\,m}^{-1}$
- A$0.1$
- ✓$1$
- C$10$
- D$4 \times 10^{-4}$
✓
Answer
Correct option: B.
$1$
b
Cell count $G^{*}=\frac{0.02}{0.0004}$
Cell count $G^{*}=\frac{0.02}{0.0004}$
${\mathrm{G}=\frac{1}{\mathrm{R}}=\frac{1}{50}}$
${\mathrm{K}=\mathrm{G} \times \mathrm{G}^{*}=\frac{1}{50} \times \frac{0.0200}{0.0004}=1\, \mathrm{Sm}^{-1}}$
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