The adsorption of hydrogen by metals is called

Under what conditions does the rate of physisorption increase?

The principle of $Adsorption$ is used in which of the following purification methods?

The curve that best describes the adsorption of a gas $(x \, g)$ on $1.0 \, g$ of a solid substrate as a function of pressure $(p)$ at a fixed temperature is

The correct option$(s)$ related to adsorption processes is(are):
$A$. Chemisorption results in a unimolecular layer.
$B$. The enthalpy change during physisorption is in the range of $100$ to $140 \ kJ \ mol^{-1}$.
$C$. Chemisorption is an endothermic process.
$D$. Lowering the temperature favors physisorption processes.

For a linear plot of $\log(x/m)$ versus $\log p$ in a Freundlich adsorption isotherm,which of the following statements is correct? ($k$ and $n$ are constants)