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iron difluoride


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-674.55kJ/molReviewChase, 1998Data last reviewed in September, 1965
Quantity Value Units Method Reference Comment
liquid,1 bar92.54J/mol*KReviewChase, 1998Data last reviewed in September, 1965
Quantity Value Units Method Reference Comment
Deltafsolid-705.84kJ/molReviewChase, 1998Data last reviewed in September, 1965
Quantity Value Units Method Reference Comment
solid86.95J/mol*KReviewChase, 1998Data last reviewed in September, 1965

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) 1373. - 3000.
A 98.32400
B 2.199027×10-10
C -1.201491×10-10
D 2.045362×10-11
E 7.122801×10-12
F -703.8660
G 211.5246
H -674.5487
ReferenceChase, 1998
Comment Data last reviewed in September, 1965

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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Temperature (K) 298. - 1373.
A 61.53451
B 39.87026
C -23.89562
D 4.905782
E -0.297405
F -726.7650
G 148.8768
H -705.8408
ReferenceChase, 1998
Comment Data last reviewed in September, 1965

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.

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


Notes

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