Question

The cell constant of a given cell is $0.47cm^{- 1}.$ The resistance of a solution placed in this cell is measured to be 31.6 Ohm. The conductivity of the solution (in $Scm^{- 1}$ where S has usual meaning) is

• A. 0.15
• B. 1.5
• C. 0.015
• D. 150

Answer 1

Answer: (C)

0.015

Answer 2

$\kappa = \frac{1}{R} \times \text{cellconstant} = \frac{1}{\text{31.6}} \times 0.47 = 0.015Scm^{- 1}.$