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At `25^(@)C`, a conductivity cell was filled with `0.1 M NalL` solution. The conductivity of this solution is `9.2 xx 10^(3) s cm^(-1)` and resistance is `176.6 ohm`. The cross-sectional is `176.6 ohm`. What must have been the distance between the electrodes ?A. `4.5 cm`B. `6.5 cm`C. `9.8 cm`D. `5.9 cm` |
Answer» Correct Answer - B `kappa = (1)/(R) xx (1)/(a)` or `l = kappa xx R xx a` `= 9.2 xx 10^(-3) xx 176.6 xx 4 = 6.49 cm` |
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