Question

The resistance of decinormal solution of a salt occupying a volume between two platinum electrodes 1.80cm part and 5.4cm^2 in area was found to be 32ohms . The equivalent conductance of the solution is?

Answer 1

Explanation:

Given:-

• R = 32 ohm
• l = 1.80 cm
• a = 5.4 cm²

$\sf \kappa = \dfrac{1}{R}×\dfrac{l}{a}$

$\sf = \dfrac{1}{32}×\dfrac{1.8}{5.4}$

$\sf = 0.01041 \: Sm^{-1}$

$\sf \Lambda _{eq}=\dfrac{\kappa×1000}{N}$

$\sf = \dfrac{0.01041×1000}{0.1}$

$\sf = 104.1 \: S \: cm^2 \: eq^{-1}$