Zirconium fluoride
- Formula: F2Zr
- Molecular weight: 129.221
- CAS Registry Number: 13842-94-9
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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. - 1175. |
|---|---|
| A | 50.01303 |
| B | 63.31856 |
| C | -38.78489 |
| D | 9.396344 |
| E | 0.022272 |
| F | -979.6501 |
| G | 118.7223 |
| H | -962.3200 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1969 |
| 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. | 65.94 | 75.28 | 75.32 | -0.01 |
| 300. | 66.02 | 75.72 | 75.32 | 0.12 |
| 400. | 69.88 | 95.25 | 77.96 | 6.92 |
| 500. | 73.24 | 111.2 | 83.06 | 14.08 |
| 600. | 76.13 | 124.8 | 88.91 | 21.55 |
| 700. | 78.60 | 136.8 | 94.91 | 29.29 |
| 800. | 80.69 | 147.4 | 100.8 | 37.26 |
| 900. | 82.46 | 157.0 | 106.5 | 45.42 |
| 1000. | 83.97 | 165.8 | 112.0 | 53.74 |
| 1100. | 85.26 | 173.8 | 117.3 | 62.20 |
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
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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