Why important of critical temperature in liquefaction of gases? - QS Study
QS Study

Critical Temperature is an important term for the liquefaction of gases. We know critical temperature is the temperature above which the translational energy of the molecules is so high so that intermolecular attraction does not become sufficient for liquefying the gases and pressure cannot play any role to come to contact of the molecules. So for liquefying a gas its temperature must remain at critical temperature or below critical temperature. Then it can be easily liquefied by applying pressure.