Advertisements
Advertisements
Question
Write the differences between physisorption and chemisorption with respect to the following:
(i) Specificity
(ii) Temperature dependence
(iii) Reversibility and
(iv) Enthalpy change
Advertisements
Solution
|
S. No. |
Point of difference |
Physiosorption |
Chemisorption |
|
(i) |
Specificity |
This is not specific in nature. |
This is highly specific in nature. |
|
(ii) |
Temperature dependence |
Low temperature is favourable for physiosorption. It decreases with increase in temperature. |
High temperature is favourable for chemisorption. It increases with the increase in temperature. |
|
(iii) |
Reversibility |
This is reversible in nature. |
This is irreversible in nature. |
|
(iv) |
Enthalpy change |
Enthalpy of adsorption is low. |
Enthalpy of adsorption is high. |
APPEARS IN
RELATED QUESTIONS
Why are powdered substances more effective adsorbents than their crystalline forms?
What are the factors which influence the adsorption of a gas on a solid?
Answer in one sentence:
Name type of adsorption in which vander Waals focres are present.
Answer in one sentence:
Name type of adsorption in which the compound is formed.
Which among the following is true for chemisorption?
Chromatography is based on the principle of ____________.
The extent of adsorption increases with the ____________.
Rate of physisorption increase with:-
Write three differences between physisorption and chemisorption.
Which of the following statements is not true about physisorption?
