Use Coupon: CART20 and get 20% off on all online Study Material

Total Price: R

There are no items in this cart.
Continue Shopping
Get instant 20% OFF on Online Material.
coupon code: MOB20 | View Course list

Get extra R 650 off


Characteristics of physisorption and Chemical adsorption

7 years ago


Answers : (1)



Characteristics of physisorption:

(i) It is reversible.

(ii) It has weak van der Waal's forces of attraction with adsorbent.

(iii) It has low heat of adsorption.

(iv) It takes place at low temperature and decreases with increase in temperature.

(v) It increases with increase in pressure.

(vi) It forms multimolecular layer.


Characteristics of chemical adsorption:

(i) It is irreversible.

(ii) It has strong forces of attraction with adsorbent like chemical bonds.

(iii) It forms unimolecular layer.

(iv) It has high heat of absorption.

(v) It takes place at moderate temperature.

(vi) It first increases and then becomes independent of pressure.

(vii) It increases with increase in temperature and then decreases.

7 years ago

Post Your Answer

Other Related Questions on Physical Chemistry

What is the oxidation state of Cl in the compound HOCl
@ prashant The oxidation number of Cl is always -1 when it's not in diatomic form (Cl2). so, here also the oxidation number is -1 in the case of cl . this compound , oxidation number...
Umakant biswal 3 months ago
The Oxidation Number of Cl in HOCl is +1. It can be calculated as below: Total Charge on Molecule is Zero(0). Therefore, 0 = + 1 (for Hydrogen) – 2 (for Oxygen) ​+ X (for Chlorine) 0 = – ​1 ...
Bhasker Goel 3 months ago
Oxygen being more electronegative than Cl, oxygen retains its oxidation stat of -2. So, it mans that Chlorine will have an oxidation state of +1 in this compound.
what is the element with highest density among all the elements of periodic table?
@ dharma osmium is the most densiest element in the periodic table . its a very rare element which occurs in a very trace amount in platinum ores . it have a density of 22.59 g/cc . after...
Umakant biswal one month ago
It is Osmium. The higher density of Osmium may be explained on the basis of its higher atomic mass and greater value of effective nuclear charge onto its outermost electrons.
harshul gupta one month ago
What applications of scrondigner wave equation will be asked in iit advanced?the direct equation is very difficult to comprehend.plz help
@sachet schordinger equation is not that much imp from jee advanced point of view , it will be asked in jee mains , they will only ask u the equation as well as 2 of the value will be given ...
Umakant biswal one month ago
All over nao2 what is among is. What nao2 separate is also found.
Already answered . Check twice please! NaO2 is called sodium superoxide which is obtained by treating Na2O2 that is sodium peroxide with O2 at high pressures. The Reaction goes like this:...
Vikas TU 13 days ago
I want brief knowledge about subshells arriving after f-subshells.
In electronic Configuration for large atomic numbers elements, the first f orbital which gets filled is 4f. After that 5d → 6p → 7s get filled. This U can learn from the memory map which...
Vikas TU 12 days ago
-R effect of -COOR is greater than -COOH. What is the best reason behind it.
Simple answer: in Ester that is -COOR there is R group that is the combination carbon and hydrogen atoms. And -R group always shows +R effect thus decreases -R effect.
Vikas TU 26 days ago
R is a alkyl group and so it is a electron pushing group and so t shows -R effect much better than H COO
-2 minutes ago
since “R”(Alkyl) group is +R group so decrease -R effect while H doesnot hence -R effect of -COOR is greater than -COOH.
-30 minutes ago
View all Questions »

  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: R 15,000
  • View Details
Get extra R 3,750 off

Get extra R 650 off

More Questions On Physical Chemistry

Ask Experts

Have any Question? Ask Experts

Post Question

Answer ‘n’ Earn
Attractive Gift
To Win!!!
Click Here for details