In chemical adsorption,how many layers are adsorbed?

Assertion : The relation $\frac{x}{m} = k \cdot p^{1/n}$ is known as Freundlich adsorption isotherm,where $x$ is the mass of gas adsorbed by $m$ grams of adsorbent,$p$ is the equilibrium pressure,$k$ and $n$ are constants for a given system and temperature.
Reason : When several substances have the same value of $\frac{1}{n}$,the lines by which their adsorption isotherms can be represented will meet at a point.

Which of the following represents the Freundlich adsorption isotherm equation for the adsorption of a gas on a solid (where $n > 1$)?

Identify physisorption from the following.

Which one of the following gives a straight line for Freundlich adsorption isotherm?

What kind of difference is observed in the amount of adsorption with the increase in temperature?