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The gas molecules are held on solid surface by _________ in physical adsorption.(a) Chemical forces(b) Gravitational forces(c) Electrostatic forces(d) Vander Waal’s forcesI got this question in class test.My question comes from Liquids and Solids in Equilibrium with Solids in portion Miscellaneous of Chemical Process Calculation

Answer» RIGHT ANSWER is (d) Vander Waal’s forces

The best explanation: Chemisorption is the adsorption when interaction between the SOLID and the condensed molecules is relatively STRONG as contrasted with physical adsorption.


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