Subjective Type

Answer the following questions : Define limiting molar conductivity . Why conductivity of an electrolyte solution decreases with decrease in concentration ?

Solution

The value of molar conductivity when the concentration approaches zero is known as limiting molar conductivity . Conductivity of an electrolytic solution decreases with decrease in concentration as the number of ions per unit volume that carry the current in the solution decreases with decrease in concentration .

SIMILAR QUESTIONS

Electrochemistry

Define the following terms: (i) Fuel cell (ii) Limiting molar conductivity $$\left( { \bigwedge }^{ o }m \right) $$

Electrochemistry

Conductivity of 0.00241 M acetic acid is $$7.896 \times 10^{-5} S \, cm^{-1}$$. Calculate its molar conductivity. If $$\lambda^o_m$$ for acetic acid is $$390.5 S \, cm^2 \, mol^{-1}$$., what is its degree of dissociation ?

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Electrochemistry

The following curve is obtained when molar conductivity $$ ( \Lambda_m) $$ is plotted against the square root of concentration $$ c^{1/2} $$ for two electrolytes A and B. As seen from the graph , the value of limiting molar conductivity $$ (\Lambda^{\circ}_{m}) $$ for electrolyte B cannot be obtained graphically . How can this value be obtained ?

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