MHT CET · Chemistry · Electrochemistry
Electrical conductance due to all the ions in \(1 \mathrm{~cm}^3\) of given solution is called as
- A Molar conductivity
- B Resistivity
- C Conductivity
- D Electrical conductance
Answer & Solution
Correct Answer
(C) Conductivity
Step-by-step Solution
Detailed explanation
Specific conductance/Conductivity (к):-
It is defined as the reciprocal of specific resistance, \(\kappa=\frac{1}{\rho}\)
\(
\begin{aligned}
\mathrm{R} & =\rho \frac{\ell}{\mathrm{A}} \\
\frac{1}{\rho} & =\frac{1}{\mathrm{R}} \cdot \frac{\ell}{\mathrm{A}} \\
\mathrm{K} & =\mathrm{G} \times \mathrm{G}^{\circ}
\end{aligned}
\)
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 \(\mathrm{\kappa}\) is ohm \({ }^{-1} \mathrm{~cm}^{-1}\)
It is defined as the reciprocal of specific resistance, \(\kappa=\frac{1}{\rho}\)
\(
\begin{aligned}
\mathrm{R} & =\rho \frac{\ell}{\mathrm{A}} \\
\frac{1}{\rho} & =\frac{1}{\mathrm{R}} \cdot \frac{\ell}{\mathrm{A}} \\
\mathrm{K} & =\mathrm{G} \times \mathrm{G}^{\circ}
\end{aligned}
\)
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 \(\mathrm{\kappa}\) is ohm \({ }^{-1} \mathrm{~cm}^{-1}\)
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