Q. Phenol dimerises in benzene having van’t Hoff factor 0.54. What is the degree of association?
A) 1.92
B) 0.98
C) 1.08
D) 0.92
Explanation
(d)
We have, i=1-$\frac{x}{2}$
where, x = degree of association
Here, i=0.54
0.54=1-$\frac{x}{2}$
$or\ \ \ \ \ \ 0.54 - 1 = - \frac{x}{2}$
$or\ \ \ \ \ \ \ - 0.46 = - \frac{x}{2}$
x= 0.92
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.