zirconium

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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
Δfliquid17.40kJ/molReviewChase, 1998Data last reviewed in June, 1979
Quantity Value Units Method Reference Comment
liquid,1 bar47.60J/mol*KReviewChase, 1998Data last reviewed in June, 1979

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) 2125. to 4702.633
A 41.84000
B 3.954064×10-8
C -9.195094×10-9
D 7.208698×10-10
E 4.577756×10-8
F -9.152961
G 77.16133
H 17.40402
ReferenceChase, 1998
Comment Data last reviewed in June, 1979

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. to 1700.298. to 800.800. to 2125.
A 29.0166325.3924022.00069
B -12.555970.4342362.211893
C 20.749544.3845390.410633
D -5.9140001.0171230.705368
E -0.157249-0.0654492.927135
F -8.791924-3.0397603.562032
G 75.9726573.2200074.71201
H 0.0000004.8100104.810010
ReferenceChase, 1998Chase, 1998Chase, 1998
Comment α phase; Data last reviewed in June, 1979 β phase; Data last reviewed in June, 1979 β phase; Data last reviewed in June, 1979

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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