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

What is the difference between physisorption and chemisorption?

Arrange the gases $H_2, CH_4, CO_2,$ and $NH_3$ in the order of their volume adsorbed on $1 \ g$ of charcoal at $288 \ K$.

In the Freundlich isotherm $\frac{x}{m}=k p^{\frac{1}{n}}$ plot of $\log \frac{x}{m}$ vs $\log p$, the intercept is (where, $x$, $m$, $p$ and $k$ are mass of the gas, mass of adsorbent, pressure and constant which depend on the nature of the adsorbent, respectively)

Which of the following is true for spontaneous adsorption of $H_2$ gas without dissociation on a solid surface?

Which of the following is incorrect for physisorption?