Consider the following about the tyndall effect.
(I) It is used to distinguish between a true and colloidal solution.
(II) It is possible only when the dispersed medium and dispersed phase differ much in their refraction indices.
(III) It is observed only when the size of colloidal particles is much smaller than the wavelength of the light used.
The correct statements are
Identify the factors which favour the physical adsorption from the following
(I) High surface area
(II) Low temperatures
(III) High temperatures
(IV) Low pressures
(V) High pressures
The process in which colloids, when subjected to DC electric field move towards an electrode is
10 g of a gas is adsorbed on 500 g of solid at 10 bar. If the pressure is increased at 20 bar, 14 g of the gas is adsorbed by the same solid at the same temperature. What is the slope of Freundlich adsorption isotherm?
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