chromium dioxide
- Formula: CrO2
- Molecular weight: 83.9949
- IUPAC Standard InChI: InChI=1S/Cr.2O/q+4;2*-2
- IUPAC Standard InChIKey: IAQWMWUKBQPOIY-UHFFFAOYSA-N
- CAS Registry Number: 12018-01-8
- Chemical structure:
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Gas Phase Heat Capacity (Shomate Equation)
Go To: Top, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
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.
| Temperature (K) | 298. - 1100. | 1100. - 6000. |
|---|---|---|
| A | 27.97560 | 57.85928 |
| B | 70.09204 | 0.190282 |
| C | -62.57674 | -0.038347 |
| D | 19.98098 | 0.002643 |
| E | -0.041121 | -2.578022 |
| F | -86.39416 | -99.71476 |
| G | 284.5681 | 328.5921 |
| H | -75.31200 | -75.31200 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in December, 1973 | Data last reviewed in December, 1973 |
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References
Go To: Top, Gas Phase Heat Capacity (Shomate Equation), 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 Heat Capacity (Shomate Equation), References
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