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The resistance of a conductivity cell containing 0.001 M KCl solution at 298 K is 1500 Ω. What is the cell constant if conductivity of 0.001 M KCl solution at 298 K is 0.146 x 10-3 S cm-1? |
0.219 cm-1 0.219 cm-2 0.129 cm-1 0.129 cm-2 |
0.219 cm-1 |
Conductivity = Conductance x Cell constant Κ = G x σ Κ = \(\frac{1}{R}\) x σ 0.146 x 10-3 = \(\frac{1}{1500}\) x σ σ = 0.146 x 10-3 x 1500 = 0.219 cm-1 |