The correct statement(s) about surface properties is(are) (2017)

Chemistry · JEE Advanced · NTA Exams — Surface Chemistry

1. Adsorption is accompanied by decrease in enthalpy and decrease in entropy of the system
2. 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
3. Cloud is an emulsion type of colloid in which liquid is dispersed phase and gas is dispersion medium
4. Brownian motion of colloidal particles does not depend on the size of the particles but depends on viscosity of the solution

Answer

(A) Adsorption is accompanied by decrease in enthalpy and decrease in entropy of the system, (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

Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.

Related practice questions

• Choose the correct reason(s) for the stability of the Lyophobic colloidal particles. (2012)
• Statement-1 : Micelles are formed by surfactant molecules above the critical micellar concentration (CMC)…
• Following are the events taking place to explain adsorption theory I : Desorption II : Diffusion of the…
• The adsorption of a gas on a solid surface varies with pressure of the gas in which of the following manner
• Ferric hydroxide sol is positively charged colloid. The coagulating power of NO _ 3 ^ - , SO _ 4 ^ 2- and PO…
• Assertion (A): Micelles are formed by surfactant molecules above the critical micelle concentration(CMC)…
• As 2 S 3 sol has a negative charge. Capacity to precipitate it is highest in
• Consider the following statements related to colloids. (I) Lyophobic colloids are not formed by simple mixing…

More Surface Chemistry questions · Browse all practice questions