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Pentane, 2,3,4-trimethyl-

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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:
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
Deltafgas-217.4 ± 1.7kJ/molCcbProsen and Rossini, 1945ALS
Quantity Value Units Method Reference Comment
gas427.2 ± 1.3J/mol*KN/APitzer K.S., 1941GT

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
233.50 ± 0.47373.15Hossenlopp I.A., 1981Please also see Pitzer K.S., 1941, Barrow G.M., 1951.; GT
246.46 ± 0.49398.15
248.11402.8
251.5 ± 2.5417.0
258.52 ± 0.52423.15
271.05 ± 0.54448.15
276.98463.6
283.03 ± 0.57473.15
293.98 ± 0.59498.15
303.34521.6
304.96 ± 0.61523.15

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
123.68200.Scott D.W., 1974Recommended values were obtained from the consistent correlation scheme for alkanes [ Scott D.W., 1974, 2, Scott D.W., 1974]. This approach gives a good agreement with experimental data available for alkanes. However, large uncertainties could be expected at high temperatures.; GT
176.19273.15
191.6 ± 0.6298.15
192.72300.
247.69400.
294.43500.
334.30600.
369.03700.
398.74800.
424.68900.
447.271000.
467.351100.
484.511200.
502.081300.
514.631400.
527.181500.

References

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

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]

Pitzer K.S., 1941
Pitzer K.S., The thermodynamics of branched-chain paraffins. The heat capacity, heat of fusion and vaporization and entropy of 2,3,4-trimethylpentane, J. Am. Chem. Soc., 1941, 63, 2419-2422. [all data]

Hossenlopp I.A., 1981
Hossenlopp I.A., Vapor heat capacities and enthalpies of vaporization of five alkane hydrocarbons, J. Chem. Thermodyn., 1981, 13, 415-421. [all data]

Barrow G.M., 1951
Barrow G.M., Experimental vapor heat capacities and heats of vaporization of seven octanes, J. Am. Chem. Soc., 1951, 73, 1824-1826. [all data]

Scott D.W., 1974
Scott D.W., Chemical Thermodynamic Properties of Hydrocarbons and Related Substances. Properties of the Alkane Hydrocarbons, C1 through C10 in the Ideal Gas State from 0 to 1500 K. U.S. Bureau of Mines, Bulletin 666, 1974. [all data]

Scott D.W., 1974, 2
Scott D.W., Correlation of the chemical thermodynamic properties of alkane hydrocarbons, J. Chem. Phys., 1974, 60, 3144-3165. [all data]


Notes

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