iron oxide
- Formula: FeO
- Molecular weight: 71.844
- IUPAC Standard InChI: InChI=1S/Fe.O
- IUPAC Standard InChIKey: UQSXHKLRYXJYBZ-UHFFFAOYSA-N
- CAS Registry Number: 1345-25-1
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: Iron monoxide
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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.
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| Temperature (K) | 5000. - 6000. |
|---|---|
| A | 36.19457 |
| B | -0.101054 |
| C | 0.648056 |
| D | -0.070287 |
| E | 0.238204 |
| F | 239.4708 |
| G | 283.5229 |
| H | 251.0404 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1965 |
| Temperature (K) |
Cp (J/mol*K) |
S° (J/mol*K) |
-(G° - H°298.15)/T (J/mol*K) |
H° - H°298.15 (kJ/mol) |
|---|---|---|---|---|
| 5000. | 43.11 | 346.4 | 309.6 | 184.1 |
| 5100. | 43.22 | 347.3 | 310.3 | 188.4 |
| 5200. | 43.32 | 348.1 | 311.1 | 192.8 |
| 5300. | 43.41 | 349.0 | 311.8 | 197.1 |
| 5400. | 43.49 | 349.8 | 312.5 | 201.4 |
| 5500. | 43.56 | 350.6 | 313.2 | 205.8 |
| 5600. | 43.62 | 351.4 | 313.8 | 210.1 |
| 5700. | 43.66 | 352.1 | 314.5 | 214.5 |
| 5800. | 43.70 | 352.9 | 315.1 | 218.9 |
| 5900. | 43.73 | 353.6 | 315.8 | 223.3 |
| 6000. | 43.74 | 354.4 | 316.4 | 227.6 |
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
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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