# Conductance and Conduction

• Conductance (G): The conducting power of all the ions that are present in the solution is called conductance.
• For an electrolytic solution conductance is reciprocal of it's resistance.
(a) G=\frac{1}{R}
But R ∝ l (distance between electrodes)
R\propto \frac{1}{a} (a = area of cross section of electrode)
\therefore R=\rho\frac{l}{a} where ρ = resistivity
\therefore G=\frac{1}{\rho\frac{l}{a}}
(b) G=\frac{K}{G^{*}}
K = specific conductance
G = Cell constant = l/a

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1. Conductance (G)
G =\tt \frac{1}{R}, units ohm-1, mhos or Ω-1