$2.0 \ g$ of activated charcoal is added to $100 \ mL$ of $0.5 \ M$ acetic acid (molar mass $60 \ g \ mol^{-1}$),shaken well and filtered. The concentration of the solution is reduced to $0.4 \ M$. How many grams of acetic acid is adsorbed on charcoal per gram?

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 gas will be adsorbed on a solid to a greater extent?

Aqueous solution of raw sugar when passed over beds of animal charcoal,it becomes colourless. Pick the correct set of terminologies (Adsorbent,Adsorbate,Process) that can be used for the above example.

Which of the following is not a characteristic of physical adsorption?

In Freundlich adsorption isotherm,the value of $1/n$ is