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Thursday, October 1, 2020

What are properties of "thermodynamic system"?


The state of a system is defined by a particular set of its measurable parameters called properties, by which a system can be described for example, Temperature (T), Pressure (P) and volume (V) defines the thermodynamics state of the system.

Intensive property: After specifying the parameter of the system, when system is divided in parts the parameter whose value remains unchanged due to division is known as Intensive parameter or properties. the value of intensive  is independent of the  mass (size or quantity) of the system.
 Refractive index
Surface tension
Molar Mass
Free energy per mole
Specific heat capacity
Molar heat capacity
Free energy per mole
Pressure (P)
Temperature (T)
Boiling point
freezing point etc
Molar enthalpy
Molar conductivity
Equivalent conductivity
Molarity, Normality, Mole fraction,%w/w,%V/V
EMF of cell

Extensive property: the parameter  whose value change on division known as extensive properties and these are depends on the mass (size, quantity) of the system.
Number of moles     
Free Energy (G)
Entropy (S)      
Enthalpy (H)   
Internal energy (E&U)   
Heat capacity
Gibbs free energy (G)

Extensive and Intensive properties:

1: Extensive properties are additive but intensive properties are non additive.
2: Ratio of two extensive property gives an intensive property.
3: An extensive property can be converted into intensive property by defining it per mole/        per gram/ per liter

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