Home Symbol which looks like a small house Up Solid circle with an upward pointer in it

2-Pentene, (Z)-

Data at NIST subscription sites:

NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.


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

Deltafgas (kJ/mol) Method Reference Comment
-27.2N/AWiberg, Wasserman, et al., 1984Value computed using «DELTA»fHliquid° value of -53.35±0.42 kj/mol from Wiberg, Wasserman, et al., 1984 and «DELTA»vapH° value of 26.1 kj/mol from alkenes correlation.; DRB
-26.5 ± 0.5EqkWiberg, Wasserman, et al., 1984Value computed using «DELTA»fHliquid° from Wiberg, Wasserman, et al., 1984 and «DELTA»vapH° value of 26.9 kJ/mol from Steele and Chirico, 1993.; DRB
-27.3N/AGood and Smith, 1979Value computed using «DELTA»fHliquid° value of -53.49±0.62 kj/mol from Good and Smith, 1979 and «DELTA»vapH° value of 26.1 kj/mol from alkenes correlation.; DRB
-26.6 ± 0.7CcbGood and Smith, 1979Value computed using «DELTA»fHliquid° from Good and Smith, 1979 and «DELTA»vapH° value of 26.9 kJ/mol from Steele and Chirico, 1993.; DRB
-28.9 ± 1.0ChydN/AValue computed using «DELTA»fHliquid° from missing citation and «DELTA»vapH° 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 «DELTA»fHliquid° from Coops, Mulder, et al., 1946 and «DELTA»vapH° 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