For a 2 molal aqueous NaCl solution, the mean ionic activity coefficient $$\left( {{\gamma _ \pm }} \right)$$  and the Debye-Huckel Limiting Law constant (A) are related as

For a 2 molal aqueous NaCl solution, the mean ionic activity coefficient $$\left( {{\gamma _ \pm }} \right)$$  and the Debye-Huckel Limiting Law constant (A) are related as Correct Answer $$\log {\gamma _ \pm } = - \sqrt 2 A$$

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