tungsten tetrachloride oxide

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Gas 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
Δfgas-137.07kcal/molReviewChase, 1998Data last reviewed in March, 1967
Quantity Value Units Method Reference Comment
gas,1 bar90.076cal/mol*KReviewChase, 1998Data last reviewed in March, 1967

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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 1000. to 6000.
A 30.15151
B 1.366730
C -0.364945
D 0.030859
E -0.477533
F -147.7160
G 123.4860
H -137.0680
ReferenceChase, 1998
Comment Data last reviewed in March, 1967

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
Δfliquid-150.71kcal/molReviewChase, 1998Data last reviewed in March, 1967
Quantity Value Units Method Reference Comment
liquid,1 bar60.605cal/mol*KReviewChase, 1998Data last reviewed in March, 1967
Quantity Value Units Method Reference Comment
Δfsolid-160.40kcal/molReviewChase, 1998Data last reviewed in March, 1967
Quantity Value Units Method Reference Comment
solid41.336cal/mol*KReviewChase, 1998Data last reviewed in March, 1967

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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 484. to 1000.
A 43.50000
B 6.517250×10-8
C -8.148301×10-8
D 3.426979×10-8
E 4.699761×10-10
F -163.6800
G 113.2460
H -150.7110
ReferenceChase, 1998
Comment Data last reviewed in March, 1967

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 (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. to 484.
A 7.283691
B 93.74909
C -74.33891
D 19.64600
E 0.517777
F -164.3710
G 28.24221
H -160.4000
ReferenceChase, 1998
Comment Data last reviewed in March, 1967

Phase change 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.

Data compiled by: William E. Acree, Jr., James S. Chickos

Enthalpy of sublimation

ΔsubH (kcal/mol) Temperature (K) Method Reference Comment
15.2 ± 0.41421.DSMLuna, Ponzi, et al., 1983Based on data from 396. to 447. K.

References

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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]

Luna, Ponzi, et al., 1983
Luna, Adolfo E. Castro; Ponzi, Marta I.; Rivarola, Juan B., Vapor pressure of tungsten chloride oxide (WOCl4), J. Chem. Eng. Data, 1983, 28, 4, 349-350, https://doi.org/10.1021/je00034a001 . [all data]


Notes

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