Adsorption Phenomena

Question 1

The liquid or gas being absorbed penetrated into capillary space of the absorbing medium/absorbate

Answer 1

Absorption

Question 2

Materials of one phase accumulate or contrate att the interfacial surface of other phase

Answer 2

Adsorption

Question 3

The concentration of alkaloid molecules on surface of clay

Answer 3

Adsorption

Question 4

Types of Adsorption

Answer 4

Positive Adsorption
Negative Adsorption
Physical Adsorption
Chemical Adsorption

Question 5

The molecules/ions are partitioned in favor of the surface or interface

Answer 5

Positive Adsorption

Question 6

Molecules/ions are partitioned in favor of the Bulk of liquid

Answer 6

Negative Adsorption

Question 7

The force of attraction between adsorbate and adsorbent

Answer 7

Van der waals

Question 8

A reversible adsorption by increasing temp or reducing pressure

Answer 8

Physical Adsorption/Physiosorption

Question 9

The force of attraction between adsorbate and adsorbent

Answer 9

Chemical Bonds

Question 10

Irreversible type of Adsorption

Answer 10

Chemical Adsorption/Chemisorption

Question 11

Solid-Gas Adsorption

Answer 11

*Removal of objectionable odor
* Operation of gas masks
* Measurement of dimensions of particles in a powder

Question 12

Solid-Liquid Adsorption

Answer 12

• Decolorizing solutions
• Adsorption chromatography
• Detergency
• Wetting

Question 13

An adsorption process which an intimate contact of the solids with liquid phase is achieved

Answer 13

Wetting

Question 14

Wetting Low Contact Angle

Answer 14

Adhesive > Cohesive

Question 15

Wetting with High Contact Angle

Answer 15

Cohesive > Adhesive

Question 16

Complete Wetting

Answer 16

0°C

Question 17

No wetting

Answer 17

180°C

Question 18

A phenomenon in which surfactants are used to remove foreign materials from solid surfaces

Answer 18

Detergency

Question 19

Reduce surface tension and aid in wetting the surface and dirt

Answer 19

Detergent