Extensive Variables

Extensive variables are properties that depend on the amount of material or substance present in a system. In simple terms, they change based on how much you have. For example, mass, volume, and total energy are extensive variables. If you double the amount of a substance, these variables also double. This contrasts with intensive variables, like temperature or pressure, which remain constant regardless of the amount. Understanding extensive variables is important in fields like physics and chemistry, as they help describe the behavior and characteristics of materials in different contexts.