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molybdenum dioxide


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
Deltafgas-1.99kcal/molReviewChase, 1998Data last reviewed in September, 1978
Quantity Value Units Method Reference Comment
gas,1 bar66.200cal/mol*KReviewChase, 1998Data last reviewed in September, 1978

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) 298. - 1300.1300. - 6000.
A 8.38577015.03230
B 12.08670-1.226350
C -9.9572500.422069
D 2.883191-0.033486
E -0.055946-0.860161
F -5.130302-8.657391
G 72.8477181.53929
H -1.987100-1.987100
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in September, 1978 Data last reviewed in September, 1978

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
Deltafsolid-140.50kcal/molReviewChase, 1998Data last reviewed in September, 1978
Quantity Value Units Method Reference Comment
solid11.10cal/mol*KReviewChase, 1998Data last reviewed in September, 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 (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. - 3000.
A 15.69500
B 2.763120
C 1.297271
D 0.000061
E -0.291034
F -146.2910
G 27.57679
H -140.5000
ReferenceChase, 1998
Comment Data last reviewed in September, 1978

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

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