magnesium iodide
- Formula: I2Mg
- Molecular weight: 278.1139
- CAS Registry Number: 10377-58-9
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Solid Phase Heat Capacity (Shomate Equation)
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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. to 907. |
|---|---|
| A | 71.66648 |
| B | 25.89005 |
| C | -10.85217 |
| D | 2.647184 |
| E | -0.323860 |
| F | -390.4705 |
| G | 207.3205 |
| H | -366.9372 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in December, 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. | 74.84 | 129.6 | 129.7 | -0.03 |
| 300. | 74.93 | 130.1 | 129.7 | 0.12 |
| 400. | 78.43 | 152.2 | 132.7 | 7.80 |
| 500. | 80.93 | 170.0 | 138.4 | 15.77 |
| 600. | 82.97 | 184.9 | 145.0 | 23.97 |
| 700. | 84.72 | 197.9 | 151.6 | 32.36 |
| 800. | 86.28 | 209.3 | 158.1 | 40.91 |
| 900. | 87.71 | 219.5 | 164.4 | 49.61 |
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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