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The correct statement(s) about surface p...

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

A

cloud is an emulsion type of colloid in which liquid is dispersed phase and gas is dispersion medium.

B

the critical temperatures of ethane and nitrogen are 563 K and 126 K, respectively. The adsorption of ethane will be more than that of nitrogen on same amount of activated charcoal at a given temperature.

C

adsorption is accompanied by decrease 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 on viscosity of the solution.

Text Solution

Verified by Experts

Higher the critical temperature, higher will be the extent of adsorption.
For adsorption, `DeltaH` = -ve (exothermic) and `DeltaS` = -ve (decrease in entropy)
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