For the adsorption of a gas on a solid,the plot of $\log(x/m)$ versus $\log P$ is linear with slope equal to

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.

$2.0 \, g$ of $H_2$ gas is adsorbed on $2.5 \, g$ of platinum powder at $300 \, K$ and $1 \, bar$ pressure. The volume of the gas adsorbed per gram of the adsorbent is $..... \, mL$.
(Given: $R = 0.083 \, L \, bar \, K^{-1} \, mol^{-1}$)

Identify the example of sorption from the following.

When temperature is increased,what happens to the extent of adsorption in physisorption?

Write any two characteristics of chemisorption.