_________have no interfaces.
Solids
liquids
gases
Water and kerosene
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
The variation in the amount of gas adsorbed by the adsorbent with pressure at constant temperature can be expressed by means of a curve known as ____________.
adsorption isotherm
adsorption isobar
adsorption isotones
Isoelectric
When the gas molecules or atoms are held to the solid surface by chemical bonds,the adsorption is termed as______________
Physisorption
Chemisorption
desorption
sorption
If a beam of light is passed through true solution, then it is
visible
scatter
not visible
none of these
At the critical micelle concentration (CMC) the surfactant molecules
Decompose
Dissociate
Associate
Become completely soluble
Physical adsorption of a gas by a solid is generally _____________
Reversible
Irreversible
Permanent
Stable
Chemisorption is generally ______________in nature.
reversible
temperory
endothermic
Which of the following forms cationic micelles above certain concentration?
Sodium ethyl suhphate
Sodium acetate
Urea
Cetyl trimethyl ammonium bromide
_____________arises due to the fact that the surface particles of the adsorbent are not in the same environment as the particles inside the bulk.
Absorption
Adsorption
Sorption