Adsorption of gases on a solid surface is generally exothermic because

Among the following,the number of curves not in accordance with the Freundlich adsorption isotherm is:

The mass of gas adsorbed,$x$,per unit mass of adsorbent,$m$,was measured at various pressures,$p$. $A$ graph between $\log(x/m)$ and $\log p$ gives a straight line with slope equal to $2$ and the intercept equal to $0.4771$. The value of $x/m$ at a pressure of $4 \text{ atm}$ is: (Given $\log 3 = 0.4771$)

Adsorption is a phenomenon in which a substance

What are the applications of adsorption in chemical analysis?

Select the correct statement for chemisorption.