Embibe Experts Solutions for Chapter: Surface Chemistry, Exercise 2: Level 2

The pressure of the gas was found to decrease from $720$ to $480 \mathrm{mm}$ of Hg. When $5 \mathrm{g}$ of the sample of activated charcoal was kept in a flask of one litre capacity maintained at $27°\mathrm{C}$. If the density of charcoal was at $1.25\mathrm{g}/$$\mathrm{mL}$. The volume of gas adsorbed per $\mathrm{gm}$ of charcoal at $480 \mathrm{mm}$ of $\mathrm{Hg}$ is:

Graph between $\log \mathrm{x}/\mathrm{m}$ and $\log \mathrm{p}$ is a straight line inclined at an angle of $45°.$ When pressure is $0.5 \mathrm{atm}$ and $\ln \mathrm{k}=0.693,$ the amount of solute adsorbed per $\mathrm{gm}$ of the adsorbent will be:

The adsorption isotherm for a gas is given by the relation $\mathrm{x}=\mathrm{a} \mathrm{p}/\left(1+\mathrm{bp}\right)$, where $\mathrm{x}$ is moles of gas adsorbed per gram of the adsorbent, $\mathrm{p}$ is the pressure of the gas, and $\mathrm{a}$ and $\mathrm{b}$ are constants. Then, $\mathrm{x}$:

During the process of digestion, the proteins present in food materials are hydrolysed to amino acids. The two enzymes involved in the process:

Proteins$\stackrel{\mathrm{Enzyme} \left(\mathrm{A}\right)}{\to }$Polypeptides$\stackrel{\mathrm{Enzyme} \left(\mathrm{B}\right)}{\to }$Amino acids, are respectively

The enzymes having two sites are

The curve that best describes the adsorption of a gas $\left(\mathrm{Xg}\right)$ on $0.1 \mathrm{g}$ of a solid substrate as a function of pressure $\left(\mathrm{p}\right)$ at a fixed temperature:

Which of the following ions is the most effective in the coagulation of an arsenious sulphide solution?

Finely divided catalysts have greater surface area and have greater catalytic activity than the compact solid. If a total surface area of $6291456 {\mathrm{cm}}^2$ is required for adsorption in a catalysed gaseous reaction, how many splits should be made to a cube of exactly $1 \mathrm{cm}$ in length to achieve required surface area. (Given: One split of a cube gives eight cubes of same size)?