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mercury difluoride

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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.

Quantity Value Units Method Reference Comment
Deltafgas-293.65kJ/molReviewChase, 1998Data last reviewed in December, 1961
Quantity Value Units Method Reference Comment
gas,1 bar271.69J/mol*KReviewChase, 1998Data last reviewed in December, 1961

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) 2000. - 6000.
A 61.03996
B 1.119054
C -0.302309
D 0.025750
E -0.674657
F -314.1623
G 341.4429
H -293.6545
ReferenceChase, 1998
Comment Data last reviewed in December, 1961

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.

Quantity Value Units Method Reference Comment
Deltafliquid-404.90kJ/molReviewChase, 1998Data last reviewed in December, 1961
Quantity Value Units Method Reference Comment
liquid,1 bar134.25J/mol*KReviewChase, 1998Data last reviewed in December, 1961
Quantity Value Units Method Reference Comment
Deltafsolid-422.58kJ/molReviewChase, 1998Data last reviewed in December, 1961
Quantity Value Units Method Reference Comment
solid116.31J/mol*KReviewChase, 1998Data last reviewed in December, 1961

Liquid 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) 918. - 2000.
A 102.0900
B 1.882278×10-7
C -1.176022×10-7
D 2.482594×10-8
E 1.147106×10-8
F -442.8722
G 240.2520
H -404.8974
ReferenceChase, 1998
Comment Data last reviewed in December, 1961

Solid 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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View table.

Temperature (K) 298. - 918.
A 68.61802
B 20.91971
C 0.000540
D -0.000170
E 0.000050
F -443.9726
G 193.1163
H -422.5840
ReferenceChase, 1998
Comment Data last reviewed in December, 1961

Phase change 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: William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Deltasub136. ± 4.kJ/molN/ABrunetti, Piacente, et al., 2008Based on data from 496. - 629. K.

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, NIST Free Links, Notes

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]

Brunetti, Piacente, et al., 2008
Brunetti, Bruno; Piacente, Vincenzo; Latini, Alessandro; Scardala, Paolo, Vapor Pressures and Sublimation Enthalpies of Mercury(I, II) Fluorides by the Torsion-Effusion Method, J. Chem. Eng. Data, 2008, 53, 11, 2493-2495, https://doi.org/10.1021/je800231f . [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, NIST Free Links, References