A conductivity cell filled with 0.1 M solution of KCI registers a resistance of 25.0Ω . If the cell constant of the cell is 0.25cm−1, the conductivity of the solution would be

A
$0.1 S {cm}^{- 1}$
B
$0.01 S {cm}^{- 1}$
C
$0.001 S {cm}^{- 1}$
D
$10^{- 4} S {cm}^{- 1}$

Solution:

Conductivity of the solution is $κ = \frac{K_{cell}}{R} = \frac{0.25 {cm}^{- 1}}{25.0 Ω} = 0.01 S {cm}^{- 1}$ .

An aqueous solution's conductivity is a measurement of its electrical current-transfer capacity. The conductivity rises with the concentration and mobility of ions in the solution as well as the water's temperature because ions carry the current.

A conductivity cell filled with 0.1 M solution of KCI registers a resistance of $25.0 Ω$ . If the cell constant of the cell is $0.25 {cm}^{- 1}$ , the conductivity of the solution would be

Solution:

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