Page "Intensive and extensive properties" Paragraph 64

Although not true for all physical properties, there are a number of properties which have corresponding extensive and intensive analogs, many of which are thermodynamic properties.

Examples of such extensive thermodynamic properties, which are dependent on the size of the thermodynamic system in question, include volume ( V ), internal energy ( U ), enthalpy ( H ), entropy ( S ), Gibbs free energy ( G ), Helmholtz free energy ( A ), and heat capacities ( C < sub > v </ sub > and C < sub > p </ sub >) ( in the sense of thermal mass ).

Note that the main symbols of these extensive thermodynamic properties shown here are capital letters.

Except for volume ( V ), these extensive properties are dependent on the amount of material ( substance ) in the thermodynamic system in question.