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Cyclopentane, methyl-

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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-137.7 ± 0.71kJ/molCcbGood and Smith, 1969ALS
Deltafliquid-138.4 ± 0.84kJ/molCcbProsen, Johnson, et al., 1946ALS
Deltafliquid-139.8 ± 1.7kJ/molCcbMoore, Renquist, et al., 1940Reanalyzed by Cox and Pilcher, 1970, Original value = -141.1 kJ/mol; see Moore and Parks, 1939; ALS
Quantity Value Units Method Reference Comment
Deltacliquid-3938.3 ± 0.59kJ/molCcbGood and Smith, 1969Corresponding «DELTA»fliquid = -137.7 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacliquid-3937.7 ± 0.75kJ/molCcbProsen, Johnson, et al., 1946Corresponding «DELTA»fliquid = -138.3 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacliquid-3936.2 ± 1.7kJ/molCcbMoore, Renquist, et al., 1940Reanalyzed by Cox and Pilcher, 1970, Original value = -3934.5 ± 1.7 kJ/mol; see Moore and Parks, 1939; Corresponding «DELTA»fliquid = -139.8 kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Deltacliquid-3956.kJ/molCcbZubova, 1901Corresponding «DELTA»fliquid = -120. kJ/mol (simple calculation by NIST; no Washburn corrections); ALS
Quantity Value Units Method Reference Comment
liquid247.78J/mol*KN/ADouslin and Huffman, 1946DH
liquid247.7J/mol*KN/AHuffman, Parks, et al., 1931Extrapolation below 90 K, 57.86 J/mol*K.; DH

Constant pressure heat capacity of liquid

Cp,liquid (J/mol*K) Temperature (K) Reference Comment
157.66293.15Siddiqi, Svejda, et al., 1983DH
159.12299.8Connolly, Sage, et al., 1951T = 80 to 200°F.; DH
158.70298.15Douslin and Huffman, 1946T = 12 to 300 K.; DH
157.3295.7Huffman, Parks, et al., 1931T = 92 to 294 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 and Smith, 1969
Good, W.D.; Smith, N.K., Enthalpies of combustion of toluene, benzene, cyclohexane, cyclohexene, methylcyclopentane, 1-methylcyclopentene, and n-hexane, J. Chem. Eng. Data, 1969, 14, 102-106. [all data]

Prosen, Johnson, et al., 1946
Prosen, E.J.; Johnson, W.H.; Rossini, F.D., Heats of formation and combustion of the normal alkylcyclopentanes and cyclohexanes and the increment per CH2 group for several homologous series of hydrocarbons, J. Res. NBS, 1946, 37, 51-56. [all data]

Moore, Renquist, et al., 1940
Moore, G.E.; Renquist, M.L.; Parks, G.S., Thermal data on organic compounds. XX. Modern combustion data for two methylnonanes, methyl ethyl ketone, thiophene and six cycloparaffins, J. Am. Chem. Soc., 1940, 62, 1505-1507. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds, Academic Press, New York, 1970, 1-636. [all data]

Moore and Parks, 1939
Moore, G.E.; Parks, G.S., New thermodynamic data for the cyclohexane-methylcyclopentane isomerization, J. Am. Chem. Soc., 1939, 61, 2561-2562. [all data]

Zubova, 1901
Zubova, P., Data about heat of combustion of compound cycle structure, Zh. Fiz. Khim., 1901, 33, 708-722. [all data]

Douslin and Huffman, 1946
Douslin, D.R.; Huffman, H.M., The heat capacities, heats of transition, heats of fusion and entropies of cyclopentane, methylcyclopentane and methylcylohexane, J. Am. Chem. Soc., 1946, 68, 173-176. [all data]

Huffman, Parks, et al., 1931
Huffman, H.M.; Parks, G.S.; Barmore, M., Thermal data on organic compounds. X. Further studies on the heat capacities, entropies and free energies of hydrocarbons, J. Am. Chem. Soc., 1931, 53, 3876-3888. [all data]

Siddiqi, Svejda, et al., 1983
Siddiqi, M.A.; Svejda, P.; Kohler, F., A generalized van der Waals equation of state II. Excess heat capacities of mixtures containing cycloalkanes (C5,C6), methylcycloalkanes (C5,C6) and n-decane, Ber. Bunsenges. Phys. Chem., 1983, 87, 1176-1181. [all data]

Connolly, Sage, et al., 1951
Connolly, T.J.; Sage, B.H.; Lacey, W.N., Isobaric heat capacities at bubble point. n-Hexane, methylcyclopentane, and n-octane, Ind. Eng. Chem., 1951, 43, 946-950. [all data]


Notes

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