Write differences between adsorption and absorption. - Vidyadip

Question

Write differences between adsorption and absorption.

✓

Answer

Adsorption	Absorption
1. The concentration of subtances takes place on the interface of two immiscible phases.	1. The substance is distributed in the whole body of the adsorbent to form a solution of a compound.
2. It is a surface phenome-non.	2. Absorption equilibrium is slow.
3. In it, the concentration of substance is always greater on the interface than in the bulk.	3. It is a bulk phenonenon. In if molecules of adsorbate penetrate the whole body of adsorbent.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "3 Marks Question" from Surface Chemistry→Surface Chemistry — all question types→Chemistry STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Explain with chemical reactions, the formation of anhydrides and esters from carboxylic acids.

Explain the preparation of ethers with mech$-$anism by dehydration of alcohols.

A decimolar solution of potassium ferrocyanide is $50\%$ dissociated at $300K.$ Calculate the osmotic pressure of the solution. $(R = 8.314\ J\ K^{-1}\ mol^{-1}).$

Short note on: Maltose

The decomposition of NH₃ on platnium surface is zero order reaction. What are the rates of production of N₂ and H₂ if = 2.5 × 10^-4 mol L^-1 s^-1?

What is a secondary cell or battery? Explain the charging mechanism of over all reaction in a lead storage battery.

Answer the following questions:
An optically active compound having molecular formula $\ce{C_7H_{15}Br}$ reacts with aqueous $\text{KOH}$ to give a racemic mixture of products. Write the mechanism involved in this reaction.

The rate constant for the decomposition of ethyl iodide $\ce{C_2H_5l(g) \rightarrow C_2H_4(g)+Hl(g)}$
at $600K$ is $1.60 \times 10^{-5} s^{-1} .$ Its energy of activation is $\ce{209 kJ/mol}.$ Calculate the rate constant of the reaction at $700K.$

What happens when :
(a) Acetone is treated with $Zn ( Hg ) /$ conc. HCl .
(b) Ethanal is treated with Methylmagnesium bromide and then hydrolysed ?
(c) Who are the members of halogen family?

An organic compound ‘$A’ \ce{(C_3H_4)}$ on hydration in presence of $\ce{H_2SO_4/ HgSO_4}$ gives compound ‘$B’ \ce{(C_3H_6O)}$. Compound ‘$B’$ gives white crystalline product $(D)$ with sodium hydrogensulphite. It gives negative Tollens’ test and positive iodoform’s test. On drastic oxidation $‘B\ ’$ gives compound $'C\ ’ \ce{(C_2H_4O_2)}$ along with formic acid. Identify compounds $'A\ ’, 'B\ ’$ and $'C\ ’$ and explain all the reactions.