#### Question

Short Note

In the plot of molar conductivity (∧_{m}) vs square root of concentration (c^{1/2}) following curves are obtained for two electrolytes A and B :

Answer the following:

(i) predict the nature of electrolytes A and B.

(ii) What happens on the extrapolation of ∧_{m} to concentration approaching for electrolytes A and B?

#### Solution

Electrolyte A is strong electrolyte & Electrolyte B is weak electrolyte On extrapolation of Λ_{m} to concentration approaching zero for strong electrolytes, we get the value of Λ^{=}_{m } i.e. molar conductance at infinite dilution In the case of weak electrolytes, Λ_{m} increases steeply on dilution. Therefore, Λ^{=}_{m} cannot be obtained by extrapolation.

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