iron
- Formula: Fe
- Molecular weight: 55.845
- IUPAC Standard InChI: InChI=1S/Fe
- IUPAC Standard InChIKey: XEEYBQQBJWHFJM-UHFFFAOYSA-N
- CAS Registry Number: 7439-89-6
- Chemical structure:
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- Other data available:
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Liquid 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 (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 1809. - 3133.345 |
|---|---|
| A | 11.00000 |
| B | -4.504460×10-9 |
| C | 1.456680×10-9 |
| D | -1.587071×10-10 |
| E | -1.970870×10-9 |
| F | -2.582560 |
| G | 17.33770 |
| H | 2.962481 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in March, 1978 |
| Temperature (K) |
Cp (cal/mol*K) |
S° (cal/mol*K) |
-(G° - H°298.15)/T (cal/mol*K) |
H° - H°298.15 (kcal/mol) |
|---|---|---|---|---|
| 1809. | 11.00 | 23.86 | 15.92 | 14.35 |
| 1900. | 11.00 | 24.40 | 16.32 | 15.35 |
| 2000. | 11.00 | 24.96 | 16.73 | 16.45 |
| 2100. | 11.00 | 25.50 | 17.14 | 17.55 |
| 2200. | 11.00 | 26.01 | 17.53 | 18.65 |
| 2300. | 11.00 | 26.50 | 17.91 | 19.75 |
| 2400. | 11.00 | 26.97 | 18.28 | 20.85 |
| 2500. | 11.00 | 27.42 | 18.63 | 21.95 |
| 2600. | 11.00 | 27.85 | 18.98 | 23.05 |
| 2700. | 11.00 | 28.26 | 19.32 | 24.15 |
| 2800. | 11.00 | 28.66 | 19.64 | 25.25 |
| 2900. | 11.00 | 29.05 | 19.96 | 26.35 |
| 3000. | 11.00 | 29.42 | 20.27 | 27.45 |
| 3100. | 11.00 | 29.78 | 20.57 | 28.55 |
References
Go To: Top, Liquid 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, Liquid Phase Heat Capacity (Shomate Equation), References
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