The Grand Canonical and Pressure Ensembles

  • Silvio R. A. Salinas
Part of the Graduate Texts in Contemporary Physics book series (GTCP)


The canonical ensemble describes a thermodynamic system in contact with a heat reservoir, at a fixed temperature. The canonical partition function of a pure fluid depends on temperature, volume, and number of particles. The connection with thermodynamics is provided by the Helmholtz free energy. In more general cases, we consider a system coupled to a reservoir that fixes additional thermodynamic fields, as pressure or chemical potential.


Partition Function Thermodynamic Limit Canonical Ensemble Helmholtz Free Energy Grand Canonical Ensemble 
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Copyright information

© Springer Science+Business Media New York 2001

Authors and Affiliations

  • Silvio R. A. Salinas
    • 1
  1. 1.Instituto de FisicaUniversidade de São PaoloSão PaoloBrazil

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