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1-Butene, 3-methyl-

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Gas phase thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
DRB - Donald R. Burgess, Jr.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Deltafgas-25.5kJ/molN/AGood and Smith, 1979Value computed using «DELTA»fHliquid° value of -51.6±0.62 kj/mol from Good and Smith, 1979 and «DELTA»vapH° value of 26.1 kj/mol from alkenes correlation.; DRB

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
115.298.15Thermodynamics Research Center, 1997p=1 bar. Recommended values were calculated from data for lower alkenes by a method of increments (see also [ Kilpatrick J.E., 1946]). The results of two statistical thermodynamics calculations [ Radyuk Z.A., 1973, Durig J.R., 1980] are in much more disagreement with experimental entropies (2.6 and 5.1 J/mol*K for S(298.15 K), respectively) than estimated TRC values.; GT
115.300.
143.400.
168.500.
190.600.
208.700.
224.800.
238.900.
250.1000.
260.1100.
269.1200.
277.1300.
284.1400.
290.1500.

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Good and Smith, 1979
Good, W.D.; Smith, N.K., The enthalpies of combustion of the isomeric pentenes in the liquid state. A warning to combustion calorimetrists about sample drying, J. Chem. Thermodyn., 1979, 11, 111-118. [all data]

Thermodynamics Research Center, 1997
Thermodynamics Research Center, Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]

Kilpatrick J.E., 1946
Kilpatrick J.E., Heats, equilibrium constants, and free energies of formation of the monoolefin hydrocarbons, J. Res. Nat. Bur. Stand, 1946, 36, 559-612. [all data]

Radyuk Z.A., 1973
Radyuk Z.A., Equilibrium of isomerization and thermodynamic properties of methylbutenes, Neftekhimiya, 1973, 13, 356-360. [all data]

Durig J.R., 1980
Durig J.R., Torsional spectra of molecules with two internal C3v rotors. 19. Vibrational spectra, torsional potential functions, and conformational and thermodynamic properties of 2-methyl-1-butene, J. Phys. Chem., 1980, 84, 3554-3561. [all data]


Notes

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