Which of the following statements is true for adsorption?

Shown below are adsorption isotherms for a gas '$X$' at temperatures $T_1$,$T_2$,and $T_3$. Here,$p$ and $\frac{x}{m}$ represent pressure and the extent of adsorption,respectively. The correct order of temperatures for the given adsorption is:

For the Freundlich adsorption isotherm,a graph of $\log \frac{x}{m}$ is plotted against $\log P$. The slope of the line and its $y$-axis intercept,respectively,correspond to:

What is the role of activated charcoal in gas masks used in coal mines?

Select the correct statement.

Absorption and adsorption are respectively