engineering chemistry MCQ #2759

The limiting molar conductivity of NaCl is 126.5 S cm²/mol. If the molar conductivity of NaCl at 0.1 M is 106.7 S cm²/mol, what is the value of the Kohlrausch coefficient?

engineering chemistry MCQ #2759

  1. Question 1

    Q1. The limiting molar conductivity of NaCl is 126.5 S cm²/mol. If the molar conductivity of NaCl at 0.1 M is 106.7 S cm²/mol, what is the value of the Kohlrausch coefficient?

    • A) 0.63
    • B) 0.53
    • C) 0.43
    • D) 0.33

    Answer: 0.63

    Explanation: Using the Debye-Huckel-Onsager equation or Kohlrausch law, we can relate the molar conductivity to concentration, but directly calculating 'A' or the coefficient from given data is complex without the exact formula.