2-Pentene, (Z)-

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Enthalpy of formation of gas at standard conditions (nominally 298.15 K, 1 atm.)

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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.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Δfgas (kJ/mol) Method Reference Comment
-27.2N/AWiberg, Wasserman, et al., 1984Value computed using ΔfHliquid° value of -53.35±0.42 kj/mol from Wiberg, Wasserman, et al., 1984 and ΔvapH° value of 26.1 kj/mol from alkenes correlation.; DRB
-26.5 ± 0.5EqkWiberg, Wasserman, et al., 1984Value computed using ΔfHliquid° from Wiberg, Wasserman, et al., 1984 and ΔvapH° value of 26.9 kJ/mol from Steele and Chirico, 1993.; DRB
-27.3N/AGood and Smith, 1979Value computed using ΔfHliquid° value of -53.49±0.62 kj/mol from Good and Smith, 1979 and ΔvapH° value of 26.1 kj/mol from alkenes correlation.; DRB
-26.6 ± 0.7CcbGood and Smith, 1979Value computed using ΔfHliquid° from Good and Smith, 1979 and ΔvapH° value of 26.9 kJ/mol from Steele and Chirico, 1993.; DRB
-28.9 ± 1.0ChydN/AValue computed using ΔfHliquid° from missing citation and ΔvapH° value of 26.9 kJ/mol from Steele and Chirico, 1993.; DRB
-28.0 ± 0.8ChydEgger and Benson, 1966ALS
-33.1 ± 0.4CmCoops, Mulder, et al., 1946Value computed using ΔfHliquid° from Coops, Mulder, et al., 1946 and ΔvapH° value of 26.9 kJ/mol from Steele and Chirico, 1993.; DRB

References

Go To: Top, Enthalpy of formation of gas at standard conditions (nominally 298.15 K, 1 atm.), Notes

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

Wiberg, Wasserman, et al., 1984
Wiberg, K.B.; Wasserman, D.J.; Martin, E., Enthalpies of hydration of alkenes. 2. The n-heptenes and n-pentenes, J. Phys. Chem., 1984, 88, 3684-3688. [all data]

Steele and Chirico, 1993
Steele, W.V.; Chirico, R.D., Thermodynamic properties of alkenes (mono-olefins larger than C4), J. Phys. Chem. Ref. Data, 1993, 22, 377-430. [all data]

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]

Egger and Benson, 1966
Egger, K.W.; Benson, S.W., Nitric oxide and iodine catalyzed isomerization of olefins. VI. Thermodynamic data from equilibrium studies of the geometrical and positional isomerization of n-pentenes, J. Am. Chem. Soc., 1966, 88, 236-240. [all data]

Coops, Mulder, et al., 1946
Coops, J.; Mulder, D.; Dienske, J.W.; Smittenberg, J., The heats of combustion of a number of hydrocarbons, Rec. Trav. Chim. Pays/Bas, 1946, 65, 128. [all data]


Notes

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