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potassium hydrogendifluoride


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.

QuantityValueUnitsMethodReferenceComment
Deltafliquid-916.57kJ/molReviewChase, 1998Data last reviewed in June, 1971
QuantityValueUnitsMethodReferenceComment
liquid,1 bar132.77J/mol*KReviewChase, 1998Data last reviewed in June, 1971
QuantityValueUnitsMethodReferenceComment
Deltafsolid-931.23kJ/molReviewChase, 1998Data last reviewed in June, 1971
QuantityValueUnitsMethodReferenceComment
solid104.26J/mol*KReviewChase, 1998Data last reviewed in June, 1971

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)511.95 - 2000.
A104.6000
B1.197391×10-12
C0.000000
D0.000000
E3.270202×10-13
F-948.1864
G257.9495
H-916.5721
ReferenceChase, 1998
CommentData last reviewed in June, 1971

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. - 469.469. - 511.95
A17.83648100.2491
B301.1493-2.149882×10-8
C-498.38551.475985×10-8
D404.7530-3.352494×10-9
E0.257073-8.282019×10-10
F-945.4710-952.5796
G56.08275242.1076
H-931.2329-931.2329
ReferenceChase, 1998Chase, 1998
CommentData last reviewed in June, 1971Data last reviewed in June, 1971

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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