tungsten trioxide


Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, References, Notes

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
Δfgas-292.88kJ/molReviewChase, 1998Data last reviewed in September, 1966
Quantity Value Units Method Reference Comment
gas,1 bar286.43J/mol*KReviewChase, 1998Data last reviewed in September, 1966

Gas 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.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

Temperature (K) 3000. - 6000.
A 82.72479
B 0.235081
C -0.047714
D 0.003313
E -3.492612
F -327.4557
G 371.5271
H -292.8804
ReferenceChase, 1998
Comment Data last reviewed in September, 1966

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, References, Notes

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
Δfliquid-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
Δfsolid-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.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

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.

View plot Requires a JavaScript / HTML 5 canvas capable browser.

View table.

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, Gas phase thermochemistry data, 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

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, References