Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Excess enthalpy HE and massic heat capacity cp of (water + methanol) at temperatures between 323 K and 513 K and pressures up to 10 MPa

Dettmann, C., Ernst, G., Wirbser, H.
J. Chem. Thermodyn. 2006, 38, 1, 56-67
ABSTRACT
A flow calorimetric system for measurements of the massic heat capacity cp and the excess enthalpy HE is described. The apparatus consists of three cp-calorimeters and an adiabatic mixing calorimeter. Excess molar enthalpies HEm and massic heat capacities cpM of (water + methanol) were measured from 323 K to 513 K at pressures from 2 MPa to 10 MPa. Special attention was directed to the critical region of methanol (TC = 513 K, pC = 8.1 MPa).
Compounds
# Formula Name
1 H2O water
2 CH4O methanol
Datasets
The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type Compound-# Property Variable Constraint Phase Method #Points
  • POMD
  • 2
  • Molar heat capacity at constant pressure, J/K/mol ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Flow calorimetry
  • 57
  • POMD
  • 2
  • 1
  • Molar heat capacity at constant pressure, J/K/mol ; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Flow calorimetry
  • 113
  • POMD
  • 2
  • 1
  • Excess molar enthalpy (molar enthalpy of mixing), kJ/mol ; Liquid
  • Pressure, kPa; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Liquid
  • FLOW:UFactor:4
  • 416