Under what conditions do the real gases obey more strictly the gas equation, PV = RT ? Explain.

Explanation

The basic properties of the molicules of an ideal gas are (i) zero size of the molecules and hence, zero volume of hte molecules and (ii) no mutual intermolecular force between them. At low pressure, the volume of the given gas becomes large. Therefore the volume of the molecules becomes negligible in comparison to the volume of the gas. At high temperature , the molecules have large K.E. and so the effect of the imtermolecular force on the motion of the pressure and high temperature, the real gases behave as ideal gases and gas equation is obeyed.