2. Uniform single-phase systems
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Some properties characterizing the state of a system have uniquely defined total values, at the scale of the system.
For example, a system has :
a total volume V ;
a total internal energy U ;
total entropy S, etc.
These quantities are extensive state quantities.
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State quantities that are not extensive are intensive. They correspond to local properties, defined at each point of the system.
For example: temperature T, pressure p, density, etc.
When modeling the properties of a chemical system, it is essential to take into account two fundamental quantities of extensive properties:...
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Uniform single-phase systems
Changes of state of a pure body by isobaric heating
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