The correct statement(s) about surface properties is (are)

Options

A. The critical temperature of ethane and nitrogen are 563K and 126K, respectively. The adsorption of ethane will more than that of nitrogen of sae amount of activated charcoal at a given temperature
B. Cloud is an emulsion type of colloid in which liquid is dispersed phase and gas is dispersion medium
C. Adsorption is accompanied by decreases in enthalpy and decrease in entropy of the system
D. Brownian motion of colloidal particles does not depend on the size of the particles but depends viscosity of the solution

Answer

A, C

Explanation

Higher the critical temperature, higher will be extent of adsorption. ltBrgt Cloud is an arosol, emulsions are liquid-liquid colloidal system.
For adsorption `DeltaHimplies`negative:`DeltaSimplies`negative
Brownian movementof colloidal particles depends on size off particles.