In the P vs V graph of `CO_(2)` gas given below, account for the reduction in the horizontal portion of the graph with increase in temperature.

Explanation

(i) difference between real gas and ideal gas
(ii) analysis of the pattern of the curves given in the graph
(iii) analysis of the kind of gradual change in the curves with the change of temperature
(iv) analysis of the change in volume with the change in pressure in case of each curve
(v) analysis of the reason behind the change