The electrical conductance of unit volume $\left(1 \mathrm{~cm}^3\right)$ of solution is called as
The electrical conductance of unit volume $\left(1 \mathrm{~cm}^3\right)$ of solution is called as
electrical resistance
resistivity
molar conductivity
conductivity
Solution
Specific conductance/Conductivity ( $\kappa$ )-
It is defined as the reciprocal of specific resistance, $\kappa=\frac{1}{p}$
$\begin{aligned}
\mathrm{R} & =\rho \frac{\ell}{\mathrm{A}} \\
\frac{1}{\rho} & =\frac{1}{\mathrm{R}} \cdot \frac{\ell}{\mathrm{A}} \\
\mathrm{K} & =\mathrm{G} \times \mathrm{G}^{\circ}
\end{aligned}$
Specific conductance $=$ Conductance $\times$ Cell constant Hence specific conductivity of a solution is defined as the conductance offered by $1 \mathrm{~cm}^3$ of electrolytic solution.
Unit of $\kappa$ is ohm ${ }^{-1} \mathrm{~cm}^{-1}$