Electrochemistry Ques 3
3. Specific conductance of a $0.1 N KCl$ solution at $23^{\circ} C$ is $0.012 ohm^{-1} cm^{-1}$. Resistance of cell containing the solution at same temperature was found to be $55 ohm$. The cell constant is [2000]
(a) $0.918 cm^{-1}$
(b) $0.66 cm^{-1}$
(c) $1.142 cm^{-1}$
(d) $1.12 cm^{-1}$
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Solution:
- (b) Given specific conductance of the solution $(\kappa)=0.012 ohm^{-1} cm^{-1}$ and resistance $(R)=55$ ohm. We know that cell constant $=$ Specific conductance $\times$ Observed resistance $=0.012 \times$ $55=0.66 cm^{-1}$.
BETA
