Which of the following statements on critical constants of gases are correct?
I : Larger the TcPc value of a gas, larger would be the excluded volume.
II : Critical temperature (Tc) of a gas is greater than its Boyle's temperature (TB).
III : At the critical point in the Van der Walls gas isotherm.
⟮dPdVm⟯Tc=0
I, II and III
While I and II are obvious from formulas for Tc and Pc and TB .
III is true by defnition . Although it is beyond the scope, please make a note of this property.