iron difluoride
- Formula: F2Fe
- Molecular weight: 93.842
- CAS Registry Number: 7789-28-8
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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 (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 3000. - 6000. |
|---|---|
| A | 14.99440 |
| B | 0.535214 |
| C | -0.154445 |
| D | 0.012072 |
| E | 0.244254 |
| F | -97.30129 |
| G | 81.37321 |
| H | -93.10000 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in September, 1965 |
| Temperature (K) |
Cp (cal/mol*K) |
S° (cal/mol*K) |
-(G° - H°298.15)/T (cal/mol*K) |
H° - H°298.15 (kcal/mol) |
|---|---|---|---|---|
| 3000. | 15.56 | 98.85 | 84.86 | 41.96 |
| 3100. | 15.55 | 99.36 | 85.32 | 43.52 |
| 3200. | 15.55 | 99.86 | 85.77 | 45.07 |
| 3300. | 15.53 | 100.3 | 86.20 | 46.63 |
| 3400. | 15.52 | 100.8 | 86.63 | 48.18 |
| 3500. | 15.51 | 101.2 | 87.04 | 49.73 |
| 3600. | 15.50 | 101.7 | 87.44 | 51.28 |
| 3700. | 15.49 | 102.1 | 87.83 | 52.83 |
| 3800. | 15.48 | 102.5 | 88.21 | 54.38 |
| 3900. | 15.46 | 102.9 | 88.58 | 55.93 |
| 4000. | 15.45 | 103.3 | 88.95 | 57.47 |
| 4100. | 15.44 | 103.7 | 89.30 | 59.02 |
| 4200. | 15.43 | 104.1 | 89.65 | 60.56 |
| 4300. | 15.41 | 104.4 | 89.99 | 62.10 |
| 4400. | 15.40 | 104.8 | 90.32 | 63.65 |
| 4500. | 15.39 | 105.1 | 90.65 | 65.18 |
| 4600. | 15.37 | 105.5 | 90.96 | 66.72 |
| 4700. | 15.36 | 105.8 | 91.28 | 68.26 |
| 4800. | 15.35 | 106.1 | 91.58 | 69.80 |
| 4900. | 15.34 | 106.4 | 91.88 | 71.33 |
| 5000. | 15.33 | 106.7 | 92.18 | 72.86 |
| 5100. | 15.32 | 107.1 | 92.47 | 74.40 |
| 5200. | 15.31 | 107.4 | 92.75 | 75.93 |
| 5300. | 15.30 | 107.6 | 93.03 | 77.46 |
| 5400. | 15.29 | 107.9 | 93.30 | 78.99 |
| 5500. | 15.28 | 108.2 | 93.57 | 80.52 |
| 5600. | 15.28 | 108.5 | 93.83 | 82.04 |
| 5700. | 15.27 | 108.8 | 94.09 | 83.57 |
| 5800. | 15.27 | 109.0 | 94.35 | 85.10 |
| 5900. | 15.26 | 109.3 | 94.60 | 86.62 |
| 6000. | 15.26 | 109.5 | 94.85 | 88.15 |
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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