Q. If $\alpha$ is the degree of ionisation, $C$ the concentration of a weak electrolyte and $K_{a}$ the acid ionisation constant then the correct relationship between $\alpha,\ C$ and $K_{a}$ is
A) $\alpha^{2} = \sqrt{\frac{K_{a}}{C}}$
B) $\alpha^{2} = \sqrt{\frac{C}{K_{a}}}$
C) $\alpha = \sqrt{\frac{K_{a}}{C}}$
D) $\alpha = \sqrt{\frac{C}{K_{a}}}$
Explanation
The correct answer is Option C: $\alpha = \sqrt{\frac{K_{a}}{C}}$.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.