Question:

Kohlrausch gave the following relation for strong electrolytes:
$\Lambda_m = \Lambda_m^0 - A\sqrt{C}$
Which of the following equality holds true?

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Remember: Infinite dilution means C $\longrightarrow$ 0 for conductance laws.
  • $\Lambda_m = \Lambda_m^0$ as C $\longrightarrow$ 1
  • $\Lambda_m = \Lambda_m^0$ as C $\longrightarrow$ 0
  • $\Lambda_m = \Lambda_m^0$ as C $\longrightarrow \infty$
  • $\Lambda_m = \Lambda_m^0$ as C $\longrightarrow \sqrt{A}$
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The Correct Option is B

Solution and Explanation

According to Kohlrausch’s law, the molar conductance of strong electrolytes approaches its limiting molar conductance ($\Lambda_m^0$) as the concentration approaches zero.
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