calcium iodide
- Formula: CaI2
- Molecular weight: 293.887
- CAS Registry Number: 10102-68-8
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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. - 1052. |
|---|---|
| A | 71.46900 |
| B | 19.24837 |
| C | 0.448010 |
| D | -0.138429 |
| E | -0.007944 |
| F | -559.0033 |
| G | 225.9745 |
| H | -536.8072 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1974 |
| 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. | 77.15 | 145.2 | 145.3 | -0.01 |
| 300. | 77.19 | 145.8 | 145.3 | 0.14 |
| 400. | 79.18 | 168.2 | 148.3 | 7.96 |
| 500. | 81.16 | 186.1 | 154.2 | 15.98 |
| 600. | 83.13 | 201.1 | 160.8 | 24.19 |
| 700. | 85.10 | 214.1 | 167.5 | 32.60 |
| 800. | 87.07 | 225.6 | 174.0 | 41.21 |
| 900. | 89.04 | 235.9 | 180.3 | 50.02 |
| 1000. | 91.02 | 245.4 | 186.4 | 59.02 |
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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