Thermodynamic property
In thermodynamics a property is any characteristic of a system that is associated with the energy and can be quantitatively evaluated.
The property of a system should have a definite value when the system is in a particular state.Thermodynamic property is a point function.
Properties like volume of a system that depend on the mass of a system are called extensive properties.
Properties like pressure or temperature which do not depend on the system mass are called intensive properties.
The ratio of extensive property to the mass of the system are called specific properties and therefore become intensive properties.
Substance can be found in three states of physical aggregation namely, solid, liquid and vapor which are called its phases.
If the system consists of mixture of different phases, the phases are separated from each other by phase boundary.
The thermodynamic properties change abruptly at the phase boundary, even though the intensive properties like temperature and pressure are identical.
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