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Carbonic difluoride


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:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Deltafgas-638.90kJ/molReviewChase, 1998Data last reviewed in December, 1969
Deltafgas-640.6 ± 5.9kJ/molEqkAmphlett, Dacey, et al., 1971Heat of Decomposition third law at 1200 K; ALS
Deltafgas-639.9 ± 1.0kJ/molCcrWartenberg, 1949Corrected for CODATA value of «DELTA»fH; ALS
Quantity Value Units Method Reference Comment
gas,1 bar258.88J/mol*KReviewChase, 1998Data last reviewed in December, 1969

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. - 1000.1000. - 6000.
A 17.3844480.20644
B 134.48051.675530
C -112.4914-0.344860
D 35.158320.024211
E -0.103569-7.210580
F -649.4823-681.6113
G 243.9339328.8193
H -638.8968-638.8968
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1969 Data last reviewed in December, 1969

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.

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Amphlett, Dacey, et al., 1971
Amphlett, J.C.; Dacey, J.R.; Pritchard, G.O., An investigation of the reaction 2COF2 = CO2 + CF4 and the heat of formation of carbonyl fluoride, J. Phys. Chem., 1971, 75, 3024-3026. [all data]

Wartenberg, 1949
Wartenberg, H.V., Die bildungswarme einiger fluorid, Z. Anorg. Chem., 1949, 258, 354-360. [all data]


Notes

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