The degree of ionization of a weak electrolyt | vedclass

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(C) According to $Ostwald's \ dilution \ law$,the degree of ionization $(\alpha)$ of a weak electrolyte is given by $\alpha = \sqrt{K_a / C}$,where $K

Vedclass · Accepted Answer

Addition of more water to the solution (dilution)

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(C) According to $Ostwald's \ dilution \ law$,the degree of ionization $(\alpha)$ of a weak electrolyte is given by $\alpha = \sqrt{K_a / C}$,where $K_a$ is the dissociation constant and $C$ is the concentration of the electrolyte. Since $\alpha \propto 1 / \sqrt{C}$,as the concentration $C$ decreases (which happens upon adding more water or dilution),the degree of ionization $\alpha$ increases.

The degree of ionization of a weak electrolyte increases with:

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