DOI: 10.1063/1.1750436. The Low Temperature Gaseous Heat Capacities of C2H6

The Low Temperature Gaseous Heat Capacities of C2H6

10.1063/1.1750436

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

The heat capacities of gaseous C2H6 and C2D6 have been measured down to 93°K with the low pressure thermal conductivity apparatus previously described. An improved cryostat and better designed conductivity cells were used. A new method of obtaining the heat capacities from the thermal conductivity data is described which does not require a knowledge of the accommodation coefficient α. It is based on the assumption that when the accommodating efficiency of the wire is changed, α changes in the same direction for the gases being compared and further that the percentage change in α is greater the more its absolute value deviates from unity. It is then possible to show that the unknown α for the gas being studied can be bracketed within narrow limits by the α's of comparison gases. The heat capacity results for light and heavy ethane indicate a potential barrier restricting internal rotation of essentially sinusoidal shape and with a depth of 2750 cal./mole.

Bibliography

Kistiakowsky, G. B., Lacher, J. R., & Stitt, F. (1939). The Low Temperature Gaseous Heat Capacities of C2H6. The Journal of Chemical Physics, 7(5), 289â296.

Authors 3

G. B. Kistiakowsky (first)
J. R. Lacher (additional)
Fred Stitt (additional)

References 24 Referenced 54

10.1063/1.1750118 / J. Chem. Phys. (1938)
{'key': '2024020812000923900_r2', 'first-page': '184', 'volume': 'B20', 'year': '1933', 'journal-title': 'Zeits. f. Physik. Chemie'} / Zeits. f. Physik. Chemie (1933)
10.1063/1.1750435 / J. Chem. Phys. (1939)
10.1021/ja01292a009 / J. Am. Chem. Soc. (1936)
10.1021/ja01304a019 / J. Am. Chem. Soc. (1935)
{'key': '2024020812000923900_r6', 'first-page': '633', 'volume': '31', 'year': '1910', 'journal-title': 'Ann. d. Physik'} / Ann. d. Physik (1910)
{'key': '2024020812000923900_r6a', 'first-page': '194', 'volume': 'A135', 'year': '1932', 'journal-title': 'Proc. Roy. Soc. London'} / Proc. Roy. Soc. London (1932)
10.1063/1.1750280 / J. Chem. Phys. (1938)
{'key': '2024020812000923900_r7a', 'first-page': '357', 'volume': 'B40', 'year': '1938', 'journal-title': 'Zeits. f. Physik. Chemie'} / Zeits. f. Physik. Chemie (1938)
10.1063/1.1750160 / J. Chem. Phys. (1938)
10.1063/1.1750058 / J. Chem. Phys. (1937)
10.1063/1.1749574 / J. Chem. Phys. (1935)
10.1063/1.1750437 / J. Chem. Phys. (1939)
{'key': '2024020812000923900_r11'}
{'key': '2024020812000923900_r12'}
{'key': '2024020812000923900_r12a', 'first-page': '189', 'volume': 'B20', 'year': '1933', 'journal-title': 'Zeits. f. Physik. Chemie'} / Zeits. f. Physik. Chemie (1933)
{'key': '2024020812000923900_r12b', 'first-page': '23', 'volume': 'B39', 'year': '1938', 'journal-title': 'Zeits. f. Physik. Chemie'} / Zeits. f. Physik. Chemie (1938)
{'key': '2024020812000923900_r12c', 'first-page': '276', 'volume': 'B23', 'year': '1933', 'journal-title': 'Zeits. f. Physik. Chemie'} / Zeits. f. Physik. Chemie (1933)
10.1063/1.1750118 / J. Chem. Phys. (1938)
{'key': '2024020812000923900_r12e', 'first-page': '86', 'volume': '59', 'year': '1919', 'journal-title': 'Ann. d. Physik'} / Ann. d. Physik (1919)
10.1021/ie50330a014 / J. Ind. Eng. Chem. (1937)
{'key': '2024020812000923900_r12g', 'first-page': '361', 'volume': 'B31', 'year': '1936', 'journal-title': 'Zeits. f. Physik. Chemie'} / Zeits. f. Physik. Chemie (1936)
10.1021/j150324a001 / J. Phys. Chem. (1931)
10.1021/ja01281a013 / J. Am. Chem. Soc. (1937)

Dates

Type	When
Created	20 years, 7 months ago (Jan. 5, 2005, 5:59 p.m.)
Deposited	1 year, 6 months ago (Feb. 8, 2024, 7 a.m.)
Indexed	1 month, 2 weeks ago (July 2, 2025, 12:35 p.m.)
Issued	86 years, 3 months ago (May 1, 1939)
Published	86 years, 3 months ago (May 1, 1939)
Published Print	86 years, 3 months ago (May 1, 1939)

Funders 0

None

BibTeX

@article{Kistiakowsky_1939, title={The Low Temperature Gaseous Heat Capacities of C2H6}, volume={7}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1750436}, DOI={10.1063/1.1750436}, number={5}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Kistiakowsky, G. B. and Lacher, J. R. and Stitt, Fred}, year={1939}, month=may, pages={289–296} }

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