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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
Deltafliquid12.40kJ/molReviewChase, 1998Data last reviewed in March, 1978
Quantity Value Units Method Reference Comment
liquid,1 bar34.76J/mol*KReviewChase, 1998Data last reviewed in March, 1978

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) 1809. - 3133.345
A 46.02400
B -1.884667×10-8
C 6.094750×10-9
D -6.640301×10-10
E -8.246121×10-9
F -10.80543
G 72.54094
H 12.39502
ReferenceChase, 1998
Comment Data last reviewed in March, 1978

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. - 700.700. - 1042.1042. - 1100.1100. - 1809.298. - 1809.
A 18.42868-57767.65-325.8859-776.738723.97449
B 24.64301137919.728.92876919.40058.367750
C -8.913720-122773.20.000000-383.71840.000277
D 9.66470638682.420.00000057.08148-0.000086
E -0.0126433993.080411.9629242.1369-0.000005
F -6.57302224078.67745.8231697.62340.268027
G 42.51488-87364.01241.8766-558.367462.06336
H 0.0000000.0000000.0000000.0000007.788015
ReferenceChase, 1998Chase, 1998Chase, 1998Chase, 1998Chase, 1998
Comment «alpha»-«delta» phase; Data last reviewed in March, 1978 «alpha»-«delta» phase; Data last reviewed in March, 1978 «alpha»-«delta» phase; Data last reviewed in March, 1978 «alpha»-«delta» phase; Data last reviewed in March, 1978 «gamma» phase; Data last reviewed in March, 1978

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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