cobalt difluoride
- Formula: CoF2
- Molecular weight: 96.930001
- CAS Registry Number: 10026-17-2
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Solid 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) | 298. - 1400. |
|---|---|
| A | 82.90638 |
| B | 2.532735 |
| C | 0.045854 |
| D | -0.011581 |
| E | -1.314099 |
| F | -700.7782 |
| G | 174.1929 |
| H | -671.5320 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1970 |
| Temperature (K) |
Cp (J/mol*K) |
S° (J/mol*K) |
-(G° - H°298.15)/T (J/mol*K) |
H° - H°298.15 (kJ/mol) |
|---|---|---|---|---|
| 298. | 68.87 | 81.98 | 82.04 | -0.02 |
| 300. | 69.07 | 82.44 | 82.04 | 0.12 |
| 400. | 75.71 | 103.3 | 84.84 | 7.41 |
| 500. | 78.93 | 120.6 | 90.32 | 15.15 |
| 600. | 80.79 | 135.2 | 96.62 | 23.15 |
| 700. | 82.02 | 147.7 | 103.0 | 31.29 |
| 800. | 82.90 | 158.8 | 109.3 | 39.54 |
| 900. | 83.59 | 168.6 | 115.4 | 47.86 |
| 1000. | 84.16 | 177.4 | 121.1 | 56.25 |
| 1100. | 84.65 | 185.4 | 126.6 | 64.69 |
| 1200. | 85.08 | 192.8 | 131.8 | 73.18 |
| 1300. | 85.47 | 199.7 | 136.8 | 81.71 |
| 1400. | 85.84 | 206.0 | 141.5 | 90.27 |
References
Go To: Top, Solid 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, Solid Phase Heat Capacity (Shomate Equation), References
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