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Pentane

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Condensed 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
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Deltafliquid-41.47 ± 0.14kcal/molCcbGood, 1970ALS
Deltafliquid-41.36 ± 0.16kcal/molCcbProsen and Rossini, 1945ALS
Quantity Value Units Method Reference Comment
Deltacliquid-838.68 ± 0.11kcal/molCcbGood, 1970Corresponding «DELTA»fliquid = -41.47 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacliquid-838.80 ± 0.14kcal/molCcbProsen and Rossini, 1945Corresponding «DELTA»fliquid = -41.35 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacliquid-838.71 ± 0.18kcal/molCcbProsen and Rossini, 1944Corresponding «DELTA»fliquid = -41.44 kcal/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid62.971cal/mol*KN/AMesserly, Guthrie, et al., 1967DH
liquid62.780cal/mol*KN/AMesserly and Kennedy, 1940DH
liquid62.00cal/mol*KN/AParks and Huffman, 1930Extrapolation below 90 K, 56.61 J/mol*K.; DH

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
40.30298.Grigor'ev, Rastorguev, et al., 1975T = 300 to 463 K.; DH
39.959298.15Messerly, Guthrie, et al., 1967T = 12 to 300 K.; DH
40.151290.Messerly and Kennedy, 1940T = 12 to 290 K.; DH
39.01290.0Parks and Huffman, 1930T = 93 to 290 K. Value is unsmoothed experimental datum.; DH

References

Go To: Top, 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.

Good, 1970
Good, W.D., The enthalpies of combustion and formation of the isomeric pentanes, J. Chem. Thermodyn., 1970, 2, 237-244. [all data]

Prosen and Rossini, 1945
Prosen, E.J.; Rossini, F.D., Heats of combustion and formation of the paraffin hydrocarbons at 25° C, J. Res. NBS, 1945, 263-267. [all data]

Prosen and Rossini, 1944
Prosen, E.J.; Rossini, F.D., Heats of combustion of eight normal paraffin hydrocarbons in the liquid state, J. Res. NBS, 1944, 33, 255-272. [all data]

Messerly, Guthrie, et al., 1967
Messerly, J.F.; Guthrie, G.B.; Todd, S.S.; Finke, H.L., Low-temperature thermal data for n-pentane, n-heptadecane, and n-octadecane, J. Chem. Eng. Data, 1967, 12, 338-346. [all data]

Messerly and Kennedy, 1940
Messerly, G.H.; Kennedy, R.M., The heat capacity and entropy, heats of fusion and vaporization and the vapor pressure of n-pentane, J. Am. Chem. Soc., 1940, 62, 2988-2991. [all data]

Parks and Huffman, 1930
Parks, G.S.; Huffman, H.M., Thermal data on organic compounds. IX. A study of the effect of unsaturation on the heat capacities, entropies and free energies of some hydrocarbons and other compounds, J. Am. Chem. Soc., 1930, 52, 4381-4391. [all data]

Grigor'ev, Rastorguev, et al., 1975
Grigor'ev, B.A.; Rastorguev, Yu.L.; Yanin, G.S., Experimental determination of the isobaric specific heat of n-alkanes, Iz. Vyssh. Uchebn. Zaved. Neft Gaz 18, 1975, No.10, 63-66. [all data]


Notes

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