Question

Which of the following statement is true for degree of dissociation of weak electrolytes?

• A. it is inversely proportional to the initial concentration of the electrolyte
• B. it is directly proportional to the initial concentration of the electrolyte
• C. it is independent of the initial concentration of the electrolyte
• D. it depends on the equilibrium concentration of electrolyte

Answer 1

Answer: (A)

According to Ostwalds dilution law, the degree of dissociation of weak electrolytes, $\alpha =\sqrt{\frac{K}{C}}$ $\therefore$ $\alpha \propto \frac{1}{\sqrt{C}}$