BET isotherm

The BET isotherm is a model that explains how gases adsorb onto solid surfaces, particularly in porous materials like activated carbon. It extends the Langmuir theory, accounting for multiple layers of adsorbed gas molecules. The model describes the relationship between the pressure of a gas and the amount that can stick to a solid surface at a constant temperature. Essentially, it helps scientists understand the capacity of materials to store gases, which is important in applications like gas storage, catalysis, and environmental science. The BET equation provides valuable insights into surface areas and porosity of materials.