Chromium monoxide


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
Δfgas45.000kcal/molReviewChase, 1998Data last reviewed in December, 1973
Quantity Value Units Method Reference Comment
gas,1 bar57.185cal/mol*KReviewChase, 1998Data last reviewed in December, 1973

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. to 1400.1400. to 6000.
A 6.5704599.718829
B 5.104432-0.531253
C -3.9591400.162464
D 1.091230-0.010756
E -0.025572-0.658077
F 42.7610940.71310
G 63.6374067.27560
H 45.0000045.00000
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in December, 1973 Data last reviewed in December, 1973

Reaction 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.

Data compiled by: John E. Bartmess

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Individual Reactions

(CAS Reg. No. 53293-42-8 • 4294967295Chromium monoxide) + Chromium monoxide = CAS Reg. No. 53293-42-8

By formula: (CAS Reg. No. 53293-42-8 • 4294967295CrO) + CrO = CAS Reg. No. 53293-42-8

Quantity Value Units Method Reference Comment
Δr147.5 ± 8.6kcal/molN/AWenthold, Jonas, et al., 1997gas phase

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]

Wenthold, Jonas, et al., 1997
Wenthold, P.G.; Jonas, K.-L.; Lineberger, W.C., Ultraviolet Photoelectron Spectroscopy of the Chromium Dioxide Negative Ion, J. Chem. Phys., 1997, 106, 23, 9961, https://doi.org/10.1063/1.473840 . [all data]


Notes

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