sodium fluoride
- Formula: FNa
- Molecular weight: 41.9881725
- IUPAC Standard InChI: InChI=1S/FH.Na/h1H;/q;+1/p-1
- IUPAC Standard InChIKey: PUZPDOWCWNUUKD-UHFFFAOYSA-M
- CAS Registry Number: 7681-49-4
- 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 (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 3500. to 6000. |
|---|---|
| A | 8.832601 |
| B | 0.256658 |
| C | -0.025239 |
| D | 0.002151 |
| E | -0.066425 |
| F | -72.28740 |
| G | 62.24589 |
| H | -69.42001 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in December, 1968 |
| Temperature (K) |
Cp (cal/mol*K) |
S° (cal/mol*K) |
-(G° - H°298.15)/T (cal/mol*K) |
H° - H°298.15 (kcal/mol) |
|---|---|---|---|---|
| 3500. | 9.51 | 74.09 | 65.70 | 29.36 |
| 3600. | 9.52 | 74.36 | 65.94 | 30.31 |
| 3700. | 9.54 | 74.62 | 66.17 | 31.26 |
| 3800. | 9.56 | 74.87 | 66.39 | 32.22 |
| 3900. | 9.57 | 75.12 | 66.61 | 33.17 |
| 4000. | 9.59 | 75.36 | 66.83 | 34.13 |
| 4100. | 9.60 | 75.60 | 67.04 | 35.09 |
| 4200. | 9.62 | 75.83 | 67.25 | 36.05 |
| 4300. | 9.64 | 76.06 | 67.45 | 37.02 |
| 4400. | 9.65 | 76.28 | 67.65 | 37.98 |
| 4500. | 9.67 | 76.50 | 67.84 | 38.95 |
| 4600. | 9.69 | 76.71 | 68.03 | 39.91 |
| 4700. | 9.70 | 76.92 | 68.22 | 40.88 |
| 4800. | 9.72 | 77.12 | 68.40 | 41.85 |
| 4900. | 9.73 | 77.32 | 68.58 | 42.83 |
| 5000. | 9.75 | 77.52 | 68.76 | 43.80 |
| 5100. | 9.77 | 77.71 | 68.93 | 44.78 |
| 5200. | 9.78 | 77.90 | 69.10 | 45.76 |
| 5300. | 9.80 | 78.09 | 69.27 | 46.73 |
| 5400. | 9.82 | 78.27 | 69.44 | 47.72 |
| 5500. | 9.84 | 78.45 | 69.60 | 48.70 |
| 5600. | 9.85 | 78.63 | 69.76 | 49.68 |
| 5700. | 9.87 | 78.81 | 69.92 | 50.67 |
| 5800. | 9.89 | 78.98 | 70.07 | 51.66 |
| 5900. | 9.91 | 79.15 | 70.22 | 52.65 |
| 6000. | 9.93 | 79.31 | 70.37 | 53.64 |
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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