Code

Property

Unit

                                                 Critical properties

TC

Critical temperature

K

PC

Critical pressure

kPa

VDC

Critical density

kg/m3

VC

Critical molar volume

m3/mol

VSC

Critical specific volume

m3/kg

ZC

Critical compressibility

Dimensionless

TLC

Lower consulate temperature

K

TUC

Upper consulate temperature

K

           Vapor pressure, Boiling temperature, and Azeotropic T & P

PV

Vapor or Sublimation pressure

kPa

TBN

Normal boiling temperature

K

TB

Boiling temperature at pressure P

K

PA

Azeotropic pressure

kPa

TA

Azeotropic temperature

K

                                            Phase transition properties

T

Triple point temperature

K

P

Triple point pressure

K

TMN

Normal melting temperature

K

T

Quadruple (quintuple) point temperature

K

P

Quadruple (quintuple) point pressure

K

T

Solid-liquid equilibrium temperature

K

T

Liquid-liquid equilibrium temperature

K

TE

Eutectic temperature

K

HTR

Enthalpy of transition or fusion

kJ/mol

YRC

Cryoscopic constant

1/K

HVP

Enthalpy of vaporization or sublimation

kJ/mol

                                     Composition at phase equilibrium

XA#

Azeotropic composition: mole fraction of component #

Dimensionless

WA#

Azeotropic composition: weight fraction of component #

Dimensionless

VE#

Eutectic composition: volume fraction of component #

Dimensionless

XE#

Eutectic composition: mole fraction of component #

Dimensionless

WE#

Eutectic composition: weight fraction of component #

Dimensionless

VL#

Lower consulate composition: volume fraction of component #

Dimensionless

XL#

Lower consulate composition: mole fraction of component #

Dimensionless

WL#

Lower consulate composition: weight fraction of component #

Dimensionless

E#

Mass per volume of solution: component #

kg/m3

Q#

Mass ratio to solvent: component #

Dimensionless

M#

MolaLity of component #

mol/kg

J#

MolaRity of component #

mol/dm3

X#

Mole fraction of component #

Dimensionless

XC#

Mole fraction of component # in LLG critical state

Dimensionless

O#

Mole ratio to solvent: component #

Dimensionless

N#

Moles per mass of solution: component #

mol/kg

VU#

Upper consulate composition: volume fraction of component #

Dimensionless

XU#

Upper consulate composition: mole fraction of component #

Dimensionless

WU#

Upper consulate composition: weight fraction of component #

Dimensionless

V#

Volume fraction of component #

Dimensionless

B#

Volume ratio to solvent: component #

Dimensionless

W#

Weight fraction of component #

Dimensionless

WC#

Weight fraction of component # in LLG critical state

Dimensionless

PH#

Henry’s Law constant for mol fraction of component #

kPa

PHM#

Henry’s Law K (molaLity) for component #

kPa kg/mol

PHJ#

Henry’s Law K (molaRity) for component #

kPa l/mol

VLC

Bunsen coefficient

Dimensionless

VLR

Ostwald coefficient

Dimensionless

P#

Partial pressure of component #

kPa

                          Activity, Fugacity, and Osmotic properties

AP#

Activity of component #

Dimensionless

AC#

Activity coefficient of component #

Dimensionless

F#

Fugacity of component #

kPa

FC#

Fugacity coefficient of component #

Dimensionless

PO

Osmotic pressure

kPa

AOC

Osmotic coefficient

Dimensionless

                                                 Volumetric properties

VDN

Specific density

kg/m3

VS

Specific volume

m3/kg

VDM

Molar density

mol/m3

VM

Molar volume

m3/mol

VVB

2nd virial coefficient

m3/mol

VVA

2nd acoustic virial coefficient

m3/mol

VVC

3rd virial coefficient

m6/mol2

VVD

3rd acoustic virial coefficient

m6/mol2

VV1

3rd interaction virial coefficient C112

m6/mol2

VV2

3rd interaction virial coefficient C122

m6/mol2

VVE

Excess virial coefficient

m3/mol

VVI

Interaction virial coefficient

m3/mol

VEX

Excess volume

m3/mol

VP#

Partial molar volume of component #

m3/mol

VR#

Relative partial molar volume of component #

m3/mol

VA

Apparent molar volume

m3/mol

VPA

Adiabatic compressibility

1/kPa

VPT

Isothermal compressibility

1/kPa

VTP

Coefficient of expansion

1/K

Z

Compressibility

Dimensionless

PTV

Thermal pressure coefficient

kPa/K

                                    Heat capacity and derived properties

CP

Heat capacity at constant pressure Cp

J/K/mol

CPW

Cp per unit mass

J/K/kg

CPV

Cp per unit volume

J/K/m3

CS

Heat capacity at vapor saturation pressure Csat

J/K/mol

CV

Heat capacity at constant volume Cv

J/K/mol

CVV

Cv per unit volume

J/K/m3

CGM

Heat capacity ratio Cp/Cv

Dimensionless

S

Standard entropy S(T)-S(0)

J/K/mol

H

Standard enthalpy H(T)-H(0)

kJ/mol

H/T

Enthalpy function {H(T)-H(0)}/T

J/K/mol

G/T

Gibbs energy function {G(T)-H(0)}/T

J/K/mol

G

Gibbs energy G(T)-H(0)

kJ/mol

UA

Helmholtz energy A(T)-E(0)

kJ/mol

U

Internal energy

kJ/mol

TJT

Joule-Thompson coefficient

K/kPa

HPT

Pressure coefficient of enthalpy

J/mol/kPa

                     Excess partial, and apparent energetic properties

HA

Apparent enthalpy

kJ/mol

SA

Apparent entropy

J/K/mol

GA

Apparent Gibbs energy

kJ/mol

CPA

Apparent molar heat capacity

J/K/mol

HEX#

Enthalpy of mixing of a binary solvent with component #

kJ/mol

HEX

Excess enthalpy (Enthalpy of mixing)

kJ/mol

SEX

Excess entropy

J/K/mol

GEX

Excess Gibbs energy

kJ/mol

CEX

Excess heat capacity

J/K/mol

HP#

Partial molar enthalpy of component #

kJ/mol

SP#

Partial molar entropy of component #

J/K/mol

GP#

Partial molar Gibbs energy of component #

kJ/mol

CP#

Partial molar heat capacity of component #

J/K/mol

HR#

Relative partial molar enthalpy of component #

kJ/mol

SR#

Relative partial molar entropy of component #

J/K/mol

GR#

Relative partial molar Gibbs energy of component #

kJ/mol

CR#

Relative partial molar heat capacity of component #

J/K/mol

HS#

Standard state enthalpy of component #

kJ/mol

SS#

Standard state entropy of component #

J/K/mol

GS#

Standard state Gibbs energy of component #

kJ/mol

CS#

Standard state heat capacity of component #

J/K/mol

                                              Transport properties

NVC

Viscosity

Pa s

NVK

Kinematic viscosity

m2/s

NFL

Fluidity

1/Pa/s

NTC

Thermal conductivity

W/m/K

NTD

Thermal diffusivity

m2/s

NDC

Binary diffusion coefficient

10-9 m2/s

NDC

Self diffusion coefficient

10-9 m2/s

ND#

Trace diffusion coefficient of component #

10-9 m2/s

                     Refraction, Surface Tension, and Speed of Sound

RID

Refractive index (Na D-line)

Dimensionless

RIX

Refractive index (other wavelength)

Dimensionless

IST

Surface tension liquid-gas

N/m

IIT

Interfacial tension

N/m

RSS

Speed of sound

m/s

                             Enthalpy & Internal Energy of reaction

H

Enthalpy of reaction

kJ/mol

UV

Internal energy at constant volume (mass basis)

J/g

U

Internal energy of reaction (mole basis)

kJ/mol

                                         Reaction equilibrium properties

KT

Thermodynamic equilibrium constant K

Dimensionless

KM

Apparent equilibrium constant in terms of molaLity

(mol/kg)n

KJ

Apparent equilibrium constant in terms of molaRity

(mol/dm3)n

KP

Apparent equilibrium constant in terms of P

kPan

KX

Apparent equilibrium constant in terms of mole fraction X

Dimensionless