Chemistry

Adsorption from Solution When a solid is placed into a solution adsorption takes place on the surface of the solid for the same reasons which…

Gibbs’ Adsorption Equation When alcohols, phenol, glycerol, fatty acids etc. are dissolved in water, the surface tension of water is reduced, the extent of reduction…

Gas-Liquid Interface: Surface Film and Surface Pressure Mariners in early days used to calm sea waves by spreading oil on the ocean around their boats.…

BET (Brunauer, Emmet, and Teller) Isotherm BET analysis provides precise specific surface area evaluation of materials by nitrogen multilayer adsorption measured as a function of…

Deviations from Langmuir Isotherm Deviations from Langmuir isotherm are quite common, particularly when the gas pressure is high. This deviation is thought to be due…

Langmuir Isotherm Measurement Many systems covering a wide range of temperature obey the Langmuir isotherm. As a matter of fact, deviation from linearity was ascribed…

Gas-Solid Systems: Langmuir Isotherm Adsorption in gas-solid systems is relatively simple. Experiments showed that the volume of gas adsorbed on solid increases with pressure rapidly…

Difference between Physical adsorption and Chemisorption Physical adsorption is a process in which the electronic structure of the atom or molecule is barely perturbed upon…

Nature of Adsorption Commonsense suggests that if adsorption results from purely physical forces like van der Waals forces it will have a pattern or nature…

Absorption and Sorption Absorption refers to the accumulation and penetration of the particle through the surface inside the bulk of the absorbent. An example is…