The accumulation of molecular species at the surface rather than in the bulk of a solid or liquid is termed as ___________
absorption
adsorption
desorption
adhesion
The molecular species or substance,which concentrates or accumulates at the surface is termed as ________
absorbate
adsorbate
adsorbent
absorbent
During dialysis
Only solvent molecules can diffuse
Solvent molecules, ions and colloidal particles can diffuse
All kinds of particles can diffuse through the semipermeable membrane
The material on the surface of which the adsorption takes place is known as ____________
Which of the following forms cationic micelles above certain concentration?
Sodium ethyl suhphate
Sodium acetate
Urea
Cetyl trimethyl ammonium bromide
For adsorption of a gas on a solid, the plot of log x/m vs log p is linear with slope equal to (n being a whole number)
k
log k
n
1/n
When the gas molecules or atoms are held to the solid surface by chemical bonds,the adsorption is termed as______________
Physisorption
Chemisorption
sorption
Chemisorption is generally ______________in nature.
Irreversible
reversible
temperory
endothermic
Position of non-polar and polar parts in micelle is
Polar at outer surface but non-polar at inner surface
Polar at inner surface but non-polar at outer surface
Distributed all over the surface
Present in the surface only
Physical adsorption of a gas by a solid is generally _____________
Reversible
Permanent
Stable