Liquification of gas, Critical constants, Bonus topic

Liquefaction of gas, Critical constants, Bonus topic

Liquification Of Gases

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.

Assertion: A gas can be easily liquefied at any temperature below is critical temperature. Reason: Liquification of a gas takes place when the average kinetic energy of the molecules is low.