Can u explain me Liquefaction of Gases?
We know that out of solid, liquids and gases, gases are the most compressible due to large intermolecular spaces between the particles of a gas. A gas on being compressed will condense into a liquid, as the constituent molecules will come close to each other.
A gas can therefore be liquefied by increasing its pressure and decreasing its temperature. Following are the conditions that are defined when considering liquefaction of gases
Critical temperature (Tc) − the temperature at which a gas can be liquefied
Critical pressure (pc) − the pressure of a gas at critical temperature
Critical volume (Vc) − the volume of 1 mole of a gas at critical temperature
Isotherm of carbon dioxide is shown in the figure.
Critical temperature, critical pressure and critical volume are called critical constants.