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tungsten trioxide


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-788.91kJ/molReviewChase, 1998Data last reviewed in September, 1966
Quantity Value Units Method Reference Comment
liquid,1 bar103.51J/mol*KReviewChase, 1998Data last reviewed in September, 1966
Quantity Value Units Method Reference Comment
Deltafsolid-842.91kJ/molReviewChase, 1998Data last reviewed in September, 1966
Quantity Value Units Method Reference Comment
solid75.91J/mol*KReviewChase, 1998Data last reviewed in September, 1966

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) 1745. - 3000.
A 131.7960
B 0.000000
C 0.000000
D 0.000000
E 0.000000
F -855.9292
G 211.8573
H -788.9141
ReferenceChase, 1998
Comment Data last reviewed in September, 1966

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. - 1050.1050. - 1745.
A 30.5396068.31250
B 200.867035.12680
C -206.2480-10.35390
D 76.519302.016841
E -0.0889042.245240
F -859.5700-857.1110
G 60.96830156.3860
H -842.9090-842.9090
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in September, 1966 Data last reviewed in September, 1966

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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