BET theory (Brunauer-Emmett-Teller theory)

The Brunauer-Emmett-Teller (BET) theory is a method used to understand how gases interact with solid surfaces, particularly for measuring the surface area of materials like powders. It explains how gas molecules can attach to the surface of solids in layers, allowing us to determine the surface area by analyzing how much gas is absorbed. This is important in various fields, including chemistry and material science, because it helps us understand the properties of materials such as catalysts, adsorbents, and pharmaceuticals, influencing their effectiveness in different applications.