1,2-Butadiene, 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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Δfgas30.85 ± 0.14kcal/molCcrSteele, Chirico, et al., 1990ALS
Δfgas30.86kcal/molN/AGood, 1969Value computed using ΔfHliquid° value of 101.2±0.5 kj/mol from Good, 1969 and ΔvapH° value of 27.9 kj/mol from missing citation.; DRB
Quantity Value Units Method Reference Comment
gas76.771cal/mol*KN/AMesserly J.F., 1970GT

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
9.13050.Thermodynamics Research Center, 1997GT
13.29100.
16.67150.
19.63200.
23.75273.15
25.155298.15
25.258300.
30.703400.
35.619500.
39.900600.
43.611700.
46.85800.
49.64900.
52.081000.
54.211100.
56.051200.
57.621300.
58.991400.
60.181500.

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, References, Notes

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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Δfliquid24.18 ± 0.12kcal/molCcbGood, 1969ALS
Quantity Value Units Method Reference Comment
Δcliquid-767.70 ± 0.10kcal/molCcbGood, 1969Corresponding Δfliquid = 24.18 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid55.399cal/mol*KN/AMesserly, Todd, et al., 1970DH

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
36.429298.15Messerly, Todd, et al., 1970T = 12 to 320 K.; DH
36.11298.15Good, 1969DH

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Notes

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

Steele, Chirico, et al., 1990
Steele, W.V.; Chirico, R.D.; Nguyen, A.; Hossenlopp, I.A.; Smith, N.K., Determination of ideal-gas enthalpies of formation for key compounds, Am. Inst. Chem. Eng. Symp. Ser. (AIChE Symp. Ser.), 1990, 138-154. [all data]

Good, 1969
Good, W.D., 3-Methyl-1,2-butadiene: Enthalpies of combustion and formation, J. Chem. Eng. Data, 1969, 14, 480-481. [all data]

Messerly J.F., 1970
Messerly J.F., Chemical thermodynamic properties of the pentadienes. Third law studies, J. Chem. Eng. Data, 1970, 15, 227-232. [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]

Messerly, Todd, et al., 1970
Messerly, J.F.; Todd, S.S.; Guthrie, G.B., Chemical thermodynamic properties of the pentadienes, J. Chem. Eng. Data, 1970, 15, 227-232. [all data]


Notes

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