2-Pentene, (E)-
- Formula: C5H10
- Molecular weight: 70.1329
- IUPAC Standard InChI: InChI=1S/C5H10/c1-3-5-4-2/h3,5H,4H2,1-2H3/b5-3+
- IUPAC Standard InChIKey: QMMOXUPEWRXHJS-HWKANZROSA-N
- CAS Registry Number: 646-04-8
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Stereoisomers:
- Other names: trans-2-Pentene; (E)-2-Pentene; trans-β-Amylene; 2-trans-Pentene; 2-(E)-C5H10; 2-Pentene, trans-; Pentene-2, trans-; trans-pent-2-ene
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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.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| ΔfH°gas | -32. ± 2. | kJ/mol | AVG | N/A | Average of 7 values; Individual data points |
Constant pressure heat capacity of gas
| Cp,gas (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 108.9 | 298.15 | Thermodynamics Research Center, 1997 | p=1 bar. Recommended values were calculated from data for lower alkenes by a method of increments. These values are in good agreement with experimental data (see also [ Kilpatrick J.E., 1946]).; GT |
| 109.4 | 300. | ||
| 136.6 | 400. | ||
| 162.0 | 500. | ||
| 184.2 | 600. | ||
| 203.4 | 700. | ||
| 220.0 | 800. | ||
| 234.3 | 900. | ||
| 246.8 | 1000. | ||
| 257.6 | 1100. | ||
| 267.0 | 1200. | ||
| 275.2 | 1300. | ||
| 282.2 | 1400. | ||
| 288.40 | 1500. |
References
Go To: Top, Gas phase thermochemistry data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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]
Notes
Go To: Top, Gas phase thermochemistry data, References
- Symbols used in this document:
Cp,gas Constant pressure heat capacity of gas ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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