Question

The value of Van't Hoff factor ${}^{\prime }{i}^{\prime }$ in case of dimerisation of benzoic acid in benzene is given by the expression -( $\alpha$ is degree of dimerisation):-

• A. $i=1-\alpha$
• B. $i=1+\alpha$
• C. $i=1-\frac{\alpha }{2}$
• D. $i=1+\frac{\alpha }{2}$

Answer 1

Answer: (C)

$i=1-\frac{\alpha }{2}$