Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Standard molar enthalpies of formation of the acetylpyridine isomers

Freitas, V. L. S.[Vera L.S.], Oliveira, L. R. C.[Liliana R. C.], Ribeiro de Silva, M. D. M. C.[Maria D.M.C.]
J. Chem. Thermodyn. 2007, 39, 1, 39-43
ABSTRACT
The present work reports the values of the gaseous standard (p = 0.1 MPa) molar enthalpies of formation of the three acetylpyridine isomers, at T = 298.15 K. For each isomer, that value was derived from measurements of the standard molar energy of combustion of the corresponding liquid, using a static bomb calorimeter, together with measurements of the standard molar enthalpy of vaporization, measured by Calvet microcalorimetry.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 N2 nitrogen
3 H2O water
4 O2 oxygen
5 C7H7NO 2-acetylpyridine
6 C7H7NO 3-acetylpyridine
7 C7H7NO 4-acetylpyridine
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
  • 5
  • Molar enthalpy, kJ/mol ; Gas
  • Temperature, K; Gas
  • Pressure, kPa; Gas
  • Gas
  • vacuum-sublimation drop microcalorimetry
  • 1
  • POMD
  • 6
  • Molar enthalpy, kJ/mol ; Gas
  • Temperature, K; Gas
  • Pressure, kPa; Gas
  • Gas
  • vacuum-sublimation drop microcalorimetry
  • 1
  • POMD
  • 7
  • Molar enthalpy, kJ/mol ; Gas
  • Temperature, K; Gas
  • Pressure, kPa; Gas
  • Gas
  • vacuum-sublimation drop microcalorimetry
  • 1
  • RXND
  • 6
  • 1
  • 2
  • 3
  • 4
  • Specific internal energy of reaction at constant volume, J/g
  • Static bomb calorimetry
  • 1
  • RXND
  • 7
  • 1
  • 2
  • 3
  • 4
  • Specific internal energy of reaction at constant volume, J/g
  • Static bomb calorimetry
  • 1
  • RXND
  • 5
  • 1
  • 2
  • 3
  • 4
  • Specific internal energy of reaction at constant volume, J/g
  • Static bomb calorimetry
  • 1