Question

The SI unit of molar conductivity is

• A. $S m^3 mol^{-1} $
• B. $S m mol^{-1} $
• C. $ S m^2 mol^{-1} $
• D. $Sm mol^{-2} $
• E. $S m^2 mol^{-2}$

Answer 1

The Correct Option is C

SI Unit of Molar Conductivity 

Molar conductivity \( (\Lambda_m) \) is defined as:

\( \Lambda_m = \frac{\kappa}{c} \)

Where:

• \( \kappa \) is the conductivity (unit: \( S \, m^{-1} \))
• \( c \) is the concentration in molarity (unit: \( mol \, m^{-3} \))

Therefore:

\( \Lambda_m = \frac{S \, m^{-1}}{mol \, m^{-3}} = S \, m^2 \, mol^{-1} \)

Correct Answer: \( S \, m^2 \, mol^{-1} \)