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Cyclopentane, methyl-

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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.
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-106.0kJ/molN/AGood and Smith, 1969Value computed using «DELTA»fHliquid° value of -137.7±0.7 kj/mol from Good and Smith, 1969 and «DELTA»vapH° value of 31.7 kj/mol from Prosen, Johnson, et al., 1946.; DRB
Deltafgas-106.7 ± 0.84kJ/molCcbProsen, Johnson, et al., 1946ALS
Deltafgas-108.1kJ/molN/AMoore, Renquist, et al., 1940Value computed using «DELTA»fHliquid° value of -139.8±1.7 kj/mol from Moore, Renquist, et al., 1940 and «DELTA»vapH° value of 31.7 kj/mol from Prosen, Johnson, et al., 1946.; DRB

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
43.3150.Thermodynamics Research Center, 1997p=1 bar. Selected values of S(T) and Cp(T) are in close agreement with those calculated by [ Scott D.W., 1960] at low temperatures. Discrepancies increase up to 1.8 J/mol*K at 1000-1500 K.; GT
53.01100.
62.63150.
74.75200.
99.62273.15
109.5298.15
110.3300.
151.5400.
188.9500.
220.3600.
246.6700.
268.6800.
287.4900.
303.41000.
317.11100.
328.91200.
339.01300.
347.81400.
355.41500.
370.41750.
381.12000.
389.12250.
395.12500.
399.72750.
403.33000.

Constant pressure heat capacity of gas

Cp,gas (J/mol*K) Temperature (K) Reference Comment
124.24 ± 0.25333.20McCullough J.P., 1959GT
136.21 ± 0.27362.55
152.15 ± 0.30402.35
165.21 ± 0.33436.25
178.17 ± 0.36471.05

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.

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]

Thermodynamics Research Center, 1997
Thermodynamics Research Center, Selected Values of Properties of Chemical Compounds., Thermodynamics Research Center, Texas A&M University, College Station, Texas, 1997. [all data]

Scott D.W., 1960
Scott D.W., Chemical thermodynamic properties of methylcyclopentane and 1-cis-3-dimethylcyclopentane, J. Phys. Chem., 1960, 64, 906-908. [all data]

McCullough J.P., 1959
McCullough J.P., Thermodynamics of cyclopentane, methylcyclopentane and 1,cis-3-dimethylcyclopentane: verification of the concept of pseudorotation, J. Am. Chem. Soc., 1959, 81, 5880-5883. [all data]


Notes

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