Chapter 30. The Phase Rule

  1. H. Donald Brooke Jenkins

Published Online: 7 APR 2008

DOI: 10.1002/9780470697733.ch30

Chemical Thermodynamics at a Glance

Chemical Thermodynamics at a Glance

How to Cite

Jenkins, H. D. B. (2008) The Phase Rule, in Chemical Thermodynamics at a Glance, Blackwell Publishing Ltd, Oxford, UK. doi: 10.1002/9780470697733.ch30

Author Information

  1. Professor of Chemistry, Department of Chemistry, University of Warwick, Coventry, UK

Publication History

  1. Published Online: 7 APR 2008
  2. Published Print: 1 JAN 2008

ISBN Information

Print ISBN: 9781405139977

Online ISBN: 9780470697733



  • phase rules;
  • phase diagrams;
  • degree of freedom;
  • equilibria;
  • multicomponent systems


This chapter contains section titled:

  • Degrees of Freedom or Variance of a Thermodynamic System (F)

  • Specification of Composition in a Mixture of Substances. Mole Fraction, x

  • Independent and Dependent Variables

  • The Phase Rule

  • Application of the Phase Rule: f = c − p + 2