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35. When a concentrated solution of a strong electrolyte is progressively diluted, which of the follElectrochemistry Chemistry Question

Question

35. When a concentrated solution of a strong electrolyte is progressively diluted, which of the following perfectly describes the trends in its specific conductance ($\kappa$) and molar conductivity ($\Lambda_m$)?

Answer: B

💡 Solution & Explanation

Specific conductance ($\kappa$) decreases upon dilution because the number of current-carrying ions per unit volume ($1 cm^3$) strictly decreases. Molar conductivity ($\Lambda_m$) increases because the total volume holding 1 mole of electrolyte increases much faster than $\kappa$ decreases, and interionic friction drops.

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