Seema Saini Solutions for Chapter: Surface Chemistry, Exercise 1: DPP 5.1

Chromatography is a technique based on

If ${\mathrm{H}}_2$ gas is made to adsorb on a surface, then the fraction of the surface area of adsorbent covered by gas molecules is proportional to (assume its complete dissociation)

$2.0 \mathrm{g}$ of charcoal is placed in $100 \mathrm{mL}$ of $0.5 \mathrm{M} {\mathrm{CH}}_3\mathrm{COOH}$ to form an adsorbed mono-acidic layer of acetic acid molecules and thereby, the molarity of ${\mathrm{CH}}_3\mathrm{COOH}$ reduces to $0.49 \mathrm{M}$. The surface area of charcoal is $3\times {10}^{2 }{\mathrm{m}}^2 {\mathrm{g}}^{-1}$. The surface area of charcoal adsorbed by each molecule of acetic acid is $\left(\text{Take} {\mathrm{N}}_{\mathrm{A}}=6\times {10}^{23}\right)$.

Which of the following are related to physical adsorption?

Which is the correct statement(s) about Freundlich's adsorption isotherm for gases and solutions?

Which statement(s) is/are correct?

Which of the following statements are wrong?

Select the correct statements among the following: