Rate of physical adsorption increases with

Which of the following is $NOT$ a characteristic of chemisorption?

$A$ gas undergoes physical adsorption on a surface and follows the given Freundlich adsorption isotherm equation $\frac{x}{m} = k p^{0.5}$. Adsorption of the gas increases with

Given the following data:

Gas	$H_2$	$CH_4$	$CO_2$	$SO_2$
Critical Temp $/ K$	$33$	$190$	$304$	$630$

Based on the data provided,predict which of the following gases shows the least adsorption on a definite amount of charcoal.

During the adsorption of krypton on activated charcoal at low temperature,

Charcoal is mixed in $500 \ mL$ of $0.5 \ M$ acetic acid solution. After some time,the concentration of the solution becomes $0.3 \ M$. Find the total number of molecules adsorbed on the surface of the charcoal.