Intensive vs Extensive Properties
Classification of thermodynamic properties based on whether they depend on system size or amount of matter.
Governing formula
Extensive: U, V, S, m, H; Intensive: T, P, ρ, μ
SI unit
Various
In depth
Extensive properties scale linearly with system mass or size (doubling system doubles property). Intensive properties are independent of system size.
Examples in the real world
Dividing a room in half halves the total volume (extensive), but leaves air temperature and pressure unchanged (intensive).