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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 by: Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
liquid126.7J/mol*KN/AWitt and Kemp, 1937Entropy from 0 to 15 K calculated using a Debye function.

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
68.66100.Atake and Chihara, 1976T = 50 to 100 K. Data given graphically. Cp = 0.69933 (T/K) - 2.385 J/mol*K (50 to 70 K, for solid).
68.594.Roder, 1976From data 90.3 to 94 K. Average value over range.
68.44100.32Roder, 1976, 2T = 93 to 301 K (saturation line), 91 to 330 K, pressures from 0 to 33 MPa.
72.22180.Witt and Kemp, 1937T = 15 to 185 K.
74.48200.Wiebe, Hubbard, et al., 1930T = 67 to 305.2 K. Heat capacity of saturated liquid given to 295 K is 136.1 J/mol*K.


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.

Witt and Kemp, 1937
Witt, R.K.; Kemp, J.D., The heat capacity of ethane from 15°K to the boiling point. The heat of fusion and the heat of vaporization, J. Am. Chem. Soc., 1937, 59, 273-276. [all data]

Atake and Chihara, 1976
Atake, T.; Chihara, H., Calorimetric study of the phase changes in solid ethane, Chem. Lett., 1976, (7), 683-688. [all data]

Roder, 1976
Roder, H.M., The heats of transition of solid ethane, J. Chem. Phys., 1976, 65, 1371-1373. [all data]

Roder, 1976, 2
Roder, H.M., Measurements of the specific heats, Ca, and Cv, of dense gaseous and liquid ethane, J. Res., 1976, NBS 80A, 739-759. [all data]

Wiebe, Hubbard, et al., 1930
Wiebe, R.; Hubbard, K.H.; Brevoort, M.J., The heat capacity of saturated liquid ethane from the boiling point to the critical temperature and heat fusion of the solid, J. Am. Chem. Soc., 1930, 52, 611-622. [all data]


Go To: Top, Condensed phase thermochemistry data, References