Before revision: General basic quantities Quantity ( Common Name /s) (Common) Symbol /s SI Units DimensionNumber of molecules N dimensionless dimensionlessNumber of molesn mol N Temperature T K Θ Heat Energy Q, q J M L 2 T − 2Latent heat QL J M L 2 T −2 General derived quantities Quantity ( Common Name /s) (Common) Symbol /s Defining Equation SI Units DimensionThermodynamic beta, Inverse temperature β J−1 T 2 M − 1 L − 2Thermodynamic temperature τ J M L 2 T − 2Entropy S , J K−1  M L 2 T − 2 Θ − 1Pressure P Pa M L −1T− 2Internal Energy U J  M L 2 T − 2Enthalpy H J M[%%% L 2  T − 2Partition Function Z dimensionless dimensionlessGibbs free energy G J  M[%%% L 2 T − 2Chemical potential (of component i in a mixture) μi , where F is not proportional to N because μi depends on pressure.
After revision: General basic quantities Quantity ( common name /s) (Common) symbol /s SI unit Dimension Number of molecules 1 1 Amount of substance n mol N dimensionless dimensionlessNumber of molesn mol N ML2Temperature T K Θ Heat Energy Q, q J M L 2 T − 2 Latent heat QL J M L 2 ML2T −2 General derived quantities Quantity ( common name /s) (Common) symbol /s Defining equation SI unit Dimension Thermodynamic beta, inverse temperature β J−1 T 2%DIFDELCT2MD < [%%% M − 1 1L − 2 Thermodynamic temperature τ J M L 2 ML2T − 2 Entropy S , J K−1  M L 2 ML2T − 2 2Θ − 1 Pressure P Pa ML −1T− 2 Internal Energy U J  M L 2 ML2T − 2Enthalpy H J M[%%% L 2  Enthalpy H J ML2T − 2 Partition Function Z 1 1 Gibbs free energy G J  M[%%% L 2 ML2T − 2 Chemical potential (of component i in a mixture) μi , where F is not proportional to because⋅ depends on pressure.