Extensive Properties

Properties which are dependent on the amount of the substance.

e.g. volume, mass, total energy.

Extensive properties per unit mass are called specific properties.

Specific volume
where
v = specific volume [m3 kg-1]
V = volume [m3]
m = mass [kg]

Specific energy
where
e = specific energy [kJ kg-1]
E = energy [kJ]
m = mass [kg]

Specific internal energy
where
u = specific internal energy [kJ kg-1]
U = internal energy [kJ]
m = mass [kg]

See also: Intensive Properties.

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Subjects: Chemistry