The conductivity of centimolar solution of KCl at 25°C is 0.0210 ohm–1 cm–1 and the resistance of the cell containing the solution at 25°C is 60 ohm. The value of cell constant is - (A) 3.28 cm–1 (B)

Question

The conductivity of centimolar solution of KCl at 25°C is 0.0210 ohm–1 cm–1 and the resistance of the cell containing the solution at 25°C is 60 ohm. The value of cell constant is -

(A) 3.28 cm–1
(B) 1.26 cm–1
(C) 3.34 cm–1
(D) 1.34 cm–1

Prashant Kotian · Accepted Answer

Correct answer: B. Centimolar solution = = 1 M 0.01M 100 Conductivity (k) = 0.0210 ohm–1 cm–1 Resistance (R) = 60 ohm k = 1 R A 0.0210 = = –1 1 1.26cm 60 A A

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