For a weak electrolyte,the degree of dissocia | vedclass

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(B) According to Ostwald's dilution law,the degree of dissociation $\alpha$ for a weak electrolyte is given by the formula $\alpha = \sqrt{\frac{K_a}{

Vedclass · Accepted Answer

Increases with dilution.

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(B) According to Ostwald's dilution law,the degree of dissociation $\alpha$ for a weak electrolyte is given by the formula $\alpha = \sqrt{\frac{K_a}{C}}$,where $K_a$ is the dissociation constant and $C$ is the molar concentration. Since $C = \frac{n}{V}$,where $V$ is the volume of the solution,we have $\alpha = \sqrt{K_a 	imes V}$. As the dilution increases,the volume $V$ increases,which leads to an increase in the degree of dissociation $\alpha$.

For a weak electrolyte,the degree of dissociation $\alpha$ is:

Similar Questions

Select the correct statements for the weak electrolyte :-

How much water must be added to $300 \ mL$ of $0.2 \ M$ solution of $CH_3COOH$ $(K_a = 1.8 \times 10^{-5})$ for the degree of ionisation $(\alpha)$ of the acid to double (in $mL$)?

If a $1.0 \, M$ solution of a weak acid is diluted to $0.01 \, M$ at constant temperature,which of the following will occur?

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Which of the following is a poor conductor of electricity?

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