The volumes of gases $H_2, CH_4, CO_2$ and $NH_3$ adsorbed by $1 \ g$ of charcoal at $288 \ K$ are in the order:

Which of the plots is adsorption isobar for chemisorption?

Explain the mechanism of adsorption.

The graph of $\log \frac{x}{m}$ vs $\log p$ for an adsorption process is a straight line inclined at an angle of $45^{\circ}$ with an intercept equal to $0.6020$. The mass of gas adsorbed per unit mass of adsorbent at the pressure of $0.4 \ atm$ is $......... \times 10^{-1}$ (Nearest integer). Given: $\log 2 = 0.3010$.

According to the Langmuir adsorption isotherm,which of the following plots is a straight line?

Given below are two statements.
Statement-$I$: Easily liquefiable gases are readily adsorbed.
Statement-$II$: Adsorption enthalpy for physisorption is less compared to adsorption enthalpy for chemisorption.
The correct answer is