Vander waal equation

Which of following statements (s) is true I -Slope of isotherm at critical point is maximum. II-Larger is the value of T_(c) easler is the liquification of gas. III-Vander waals equation of state is applicable below critical temperature at all pressure.

The Vander wall equation for 1 mole of a real gas is (P+ (a/V^2))(V-b) =RT where P is the pressure, V is the volume, T is the absolute temperature, R is the molar gas constant and a, b are Vander waal constants. The dimensions of a is the same as those of

In vander waal's equation of the gas law the constant of a is a measure of

The vander waal's equation of state reduces itself to the idea gas equation at

A real obeying vander Waals equation will resemble ideal gas , if the

Vander waal's equation of state is obeyed by real gases for n moles of real gas the expression will be

vander walls equation and critical phenomenon