The correct statement(s) about surface properties is(are)
- Cloud is an emulsion type of colloid in which liquid is dispersed phase and gas is dispersion medium
- Adsorption is accompanied by decrease in enthalpy and decrease in entropy of the system
- Brownian motion of colloidal particles does not depend on the size of the particles but depends on viscosity of the solution
- 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
Solution
(i) Emulsion is liquid in liquid type colloid.
(ii) For adsorption, and
(iii) Smaller the size and less viscous the dispersion medium, more will be the Brownian motion.
(iv) Higher the , greater will be the extent of adsorption.
Asked in: JEE Advanced 2017 (Paper 2)