2-Pentene, (Z)-
- Formula: C5H10
- Molecular weight: 70.1329
- IUPAC Standard InChIKey: QMMOXUPEWRXHJS-HYXAFXHYSA-N
- CAS Registry Number: 627-20-3
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
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- Other names: (Z)-2-Pentene; cis-β-Amylene; cis-Pentene; cis-2-Pentene; 2-(Z)-C5H10; cis-Pentene-2; Pentene-2, cis-; (Z)-pent-2-ene
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Enthalpy of formation of gas at standard conditions (nominally 298.15 K, 1 atm.)
Go To: Top, 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:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
ΔfH°gas (kJ/mol) | Method | Reference | Comment |
---|---|---|---|
-27.2 | N/A | Wiberg, Wasserman, et al., 1984 | Value 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 ± 0.5 | Eqk | Wiberg, Wasserman, et al., 1984 | Value computed using ΔfHliquid° from Wiberg, Wasserman, et al., 1984 and ΔvapH° value of 26.9 kJ/mol from Steele and Chirico, 1993.; DRB |
-27.3 | N/A | Good and Smith, 1979 | Value 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 ± 0.7 | Ccb | Good and Smith, 1979 | Value computed using ΔfHliquid° from Good and Smith, 1979 and ΔvapH° value of 26.9 kJ/mol from Steele and Chirico, 1993.; DRB |
-28.9 ± 1.0 | Chyd | N/A | Value computed using ΔfHliquid° from missing citation and ΔvapH° value of 26.9 kJ/mol from Steele and Chirico, 1993.; DRB |
-28.0 ± 0.8 | Chyd | Egger and Benson, 1966 | ALS |
-33.1 ± 0.4 | Cm | Coops, Mulder, et al., 1946 | Value 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
Go To: Top, Enthalpy of formation of gas at standard conditions (nominally 298.15 K, 1 atm.), References
- Symbols used in this document:
ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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