Pressure versus volume graph for real gas and are shown in figure. Answer the following question on the basis of this graph.

(i) Interpret the behaviour of real gas with respect to ideal gas at low pressure.
(ii) Interpret the behaviour of real gas with respect to ideal gas at high pressure.
(iii) Mark the pressure and volume by drawing a line at the point where real gas behaves as an ideal gas.

Explanation

(i) At low pressure, the two volumes almost coincides. The mean s that the real gas behaves like and ideal gas at low pressure.
(ii) At high pressure, the volume of the gas is more as compared to that of an ideal gas.