List of thermodynamic properties

Thermodynamic properties and their characteristics
Property	Symbol	Units	Extensive?	Intensive?	Conjugate	Potential?	State qty.?	Process qty.?
Activity	$a$	–		Y			Y
Altitude		m	Y				Y
Chemical potential	$\mu _{i}$	kJ/mol		Y	Particle number $N_{i}$		Y
Compressibility (adiabatic)	$\beta _{S}$ , $\kappa$	Pa⁻¹		Y			Y
Compressibility (isothermal)	$\beta _{T}$ , $\kappa$	Pa⁻¹		Y			Y
Cryoscopic constant^[1]	$K_{f}$	K·kg/mol
Density	$\rho$	kg/m³		Y			Y
Ebullioscopic constant	$K_{b}$
Enthalpy	$H$	J	Y			Y	Y
↳ Specific enthalpy	$h$	J/kg		Y			Y
Entropy	$S$	J/K	Y		Temperature $T$	Y (entropic)	Y
↳ Specific entropy	$s$	J/(kg K)		Y			Y
Fugacity	$f$	N/m²		Y			Y
Gas constant	$R,{\bar {R}}$	J/K		Y
↳ Specific gas constant (for a particular substance)	$R_{S}$	J/(kg K)		Y
Gibbs free energy	$G$	J	Y			Y	Y
↳ Specific Gibbs free entropy	$g$	J/(kg K)		Y			Y
Gibbs free entropy	$\Xi$	J/K	Y			Y (entropic)	Y
Grand / Landau potential	$\Omega$	J	Y			Y	Y
Heat	$Q$	J	Y					Y
Heat capacity (constant pressure)	$C_{p}$	J/K	Y				Y
↳ Specific heat capacity (constant pressure)	$c_{p}$	J/(kg·K)		Y			Y
Heat capacity (constant volume)	$C_{v}$	J/K	Y				Y
↳ Specific heat capacity (constant volume)	$c_{v}$	J/(kg·K)		Y			Y
Helmholtz free energy	$A$ , $F$	J	Y			Y	Y
Helmholtz free entropy	$\Phi$	J/K	Y			Y (entropic)	Y
Internal energy	$U$	J	Y			Y	Y
↳ Specific internal energy	$u$	J/kg		Y			Y
Internal pressure	$\pi _{T}$	Pa		Y			Y
Mass	$m$	kg	Y
Particle number	$N_{i}$	–	Y		Chemical potential $\mu _{i}$
Pressure	$p$	Pa		Y	Volume $V$		Y
Temperature	$T$	K		Y	Entropy $S$		Y
Thermal conductivity	$k$	W/(m·K)		Y			Y
Thermal diffusivity	$\alpha$	m²/s		Y			Y
Thermal expansion (linear)	$\alpha _{L}$	K⁻¹		Y			Y
Thermal expansion (area)	$\alpha _{A}$	K⁻¹		Y			Y
Thermal expansion (volumetric)	$\alpha _{V}$	K⁻¹		Y			Y
Vapor quality^[2]	$\chi$	–		Y			Y
Volume	$V$	m³	Y		Pressure $P$		Y
↳ Specific volume	$v$	m³/kg		Y			Y
Work	$W$	J	Y					Y

Specific properties are expressed on a per mass basis; in some circumstances other dimensions could be used, such as per-mole.

Regarding Work and Heat:

Note that work and heat above are listed as process quantities: They are, in fact, not thermodynamic properties, but flows of energy across a system boundary. Systems do not contain work, but can perform work, and likewise, in formal thermodynamics, systems do not contain heat, but can transfer heat. Informally, however, a difference in the energy of a system that occurs solely because of a difference in its temperature is commonly called heat, and the energy that flows across a boundary as a result of a temperature difference is, in fact, heat in the technical sense.

References

^ Aylward, Gordon; Findlay, Tristan (2002), SI Chemical Data 5th ed. (5 ed.), Sweden: John Wiley & Sons, p. 202, ISBN 0-470-80044-5
^ Cengel, Yunus A.; Boles, Michael A. (2002). Thermodynamics: an engineering approach. Boston: McGraw-Hill. p. 79. ISBN 0-07-121688-X.

[1] Aylward, Gordon; Findlay, Tristan (2002), SI Chemical Data 5th ed. (5 ed.), Sweden: John Wiley & Sons, p. 202, ISBN 0-470-80044-5

[boles-2] Cengel, Yunus A.; Boles, Michael A. (2002). Thermodynamics: an engineering approach. Boston: McGraw-Hill. p. 79. ISBN 0-07-121688-X.

[1]

[2]

See also

References