Question
Give reasons:
Physisorption decrease with increase of temperature.
Physisorption decrease with increase of temperature.
✓
Answer
As physisorption is an exothermic process:
$\text{Solid}\ \ \ \ +\ \ \ \ \text{Gas}\ \ \ \ \ \rightarrow\ \ \ \ \text{Gas }/\text{Solid}\ \ \ \ +\ \ \ \ \text{Heat}\\^\text{(Adsorbent)}\ \ \ \ \ ^\text{(Absorbate)}\ \ \ \ \ ^\text{(Gas absorbed on solid)}$
According to Le Chatelier’s principle, if we increase the temperature, equilibrium will shift in the backward direction, i.e., gas is released from the adsorbed surface.
$\text{Solid}\ \ \ \ +\ \ \ \ \text{Gas}\ \ \ \ \ \rightarrow\ \ \ \ \text{Gas }/\text{Solid}\ \ \ \ +\ \ \ \ \text{Heat}\\^\text{(Adsorbent)}\ \ \ \ \ ^\text{(Absorbate)}\ \ \ \ \ ^\text{(Gas absorbed on solid)}$
According to Le Chatelier’s principle, if we increase the temperature, equilibrium will shift in the backward direction, i.e., gas is released from the adsorbed surface.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Short note on: Glycogen
Answer the following question:
Why a person suffering from high blood pressure is advised to take minimum quantity of common salt?
Why a person suffering from high blood pressure is advised to take minimum quantity of common salt?
What do you understand by lanthanoid contraction?
Explain the preparation of ketones from nitriles.
Give reasons for the following: p-nitrophenol is more acidic than o-nitrophenol.
The decomposition of $NH_3$ on platinum surface,$\text{2NH}_{3}\text{(g)}\text{ }^{Pt}_\rightarrow\text{N}_{2}\text{(g)}+\text{3H}_{2}\text{(g)}$ is a zero order reaction with k$=\text{2.5}\times\text{10}^{-4}\text{Ms}^{-1}$ . what are the rates of production of $N_2$ and $H_2?$
→Complete each synthesis by giving missing starting material, reagent or products:-
What are LDPE and HDPE? How are they prepared?
What is vulcanisation? Why is it done? Why is diphenyl amine added to rubber?
Answer the following question:
Give reasons for the following:
Give reasons for the following:
- At higher altitudes, people suffer from a disease called anoxia. In this disease, they become weak and cannot think clearly.
- When mercuric iodide is added to an aqueous solution of KI, the freezing point is raised.