Surface Phenomena: Adsorption, Isotherms & Tension

This lecture covers the concepts of physisorption and chemisorption, gas adsorption isotherms, Langmuir isotherm assumptions and equations, temperature effects on adsorption, pure chemisorption, surface tension, adhesion, cohesion work, surface and interfacial energies, and notes on surface tension processes. It explains the differences between physical and chemical adsorption, various adsorption models, and the effects of temperature and bonding strength on adsorption. The lecture also delves into the definitions and calculations of surface tension, adhesion, and cohesion work, as well as the values and experimental comparisons of surface energies in different materials.