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Acetic acid

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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.
GT - Glushko Thermocenter, Russian Academy of Sciences, Moscow

Quantity Value Units Method Reference Comment
Deltafgas-103.5 ± 0.6kcal/molAVGN/AAverage of 8 values; Individual data points
Quantity Value Units Method Reference Comment
gas67.600cal/mol*KN/AWeltner W., 1955Other third-law entropy values at 298.15 K are 284.5 [ Chao J., 1986] and 290.37(4.18) J/mol*K [ Halford J.O., 1941].; GT

Constant pressure heat capacity of gas

Cp,gas (cal/mol*K) Temperature (K) Reference Comment
9.45050.Chao J., 1986p=1 bar. Selected entropies and heat capacities differ from other statistically calculated values [ Weltner W., 1955] by 1.0-1.3 J/mol*K for S(T) and 3.1-5.4 J/mol*K for Cp(T). Please also see Chao J., 1978.; GT
9.661100.
10.22150.
11.55200.
14.19273.15
15.16 ± 0.026298.15
15.23300.
19.04400.
22.45500.
25.378600.
27.875700.
29.995800.
31.785900.
33.2841000.
34.5271100.
35.5541200.
36.4011300.
37.0981400.
37.6741500.

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.

Weltner W., 1955
Weltner W., Jr., The vibrational spectrum, associative and thermodynamic properties of acetic acid vapor, J. Am. Chem. Soc., 1955, 77, 3941-3950. [all data]

Chao J., 1986
Chao J., Thermodynamic properties of key organic oxygen compounds in the carbon range C1 to C4. Part 2. Ideal gas properties, J. Phys. Chem. Ref. Data, 1986, 15, 1369-1436. [all data]

Halford J.O., 1941
Halford J.O., The entropy of acetic acid, J. Chem. Phys., 1941, 9, 859-863. [all data]

Chao J., 1978
Chao J., Ideal gas thermodynamic properties of methanoic and ethanoic acids, J. Phys. Chem. Ref. Data, 1978, 7, 363-377. [all data]


Notes

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