The space occupied by the system.
An important extensive property of a system.
Units: SI = m3, AE = ft3

Beaker filled with liquid



Specific Volume


The volume of the system per mole of molecules within the system. (Intensive)

Molar volume definition

The volume of the system per unit of mass within the system. (Intensive)

Specific volume definition

The mass per unit volume of the system.

Density definition

Molar Volume

Related Properties:



Pressure, volume, and temperature are the three most important properties in classical thermodynamics because they are the easiest properties to measure.

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Ch 1, Lesson E, Page 1 - Volume