Question

The inversion temperature for van der Waal's gas is :
(a) $T_i = \frac{a}{(Rb)}$
(b) $T_i = \bigg \lgroup\frac{2a}{Rb}\bigg \rgroup$
(c) $T_i$ = 0.5 T
(d) $T_i = \frac{a}{2(R / b)}$

Answer 1

I think the correct answer is a.