Which one of the following is present in gas mask?

$A$ plot of $\log (x / m)$ versus $\log (P)$ for the adsorption of a gas on a solid gives a straight line with a slope of:

Explain the following terms related to Adsorption Chromatography:
$(a)$ Principle of Adsorption chromatography.
$(b)$ Adsorbent.
$(c)$ Mobile phase.
$(d)$ Adsorbate.

The adsorption of a gas at the boiling point of the gas follows the isotherm shown in the figure. Identify the correct thermodynamic properties at point $C$.

Which of the following statements is true for adsorption?

The plot that best represents the relationship between the extent of adsorption $(x / m)$ and pressure $(p)$ is