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 (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 298. to 907. |
|---|---|
| A | 17.12870 |
| B | 6.187871 |
| C | -2.593731 |
| D | 0.632692 |
| E | -0.077404 |
| F | -93.32469 |
| G | 49.55079 |
| H | -87.70010 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in December, 1974 |
| Temperature (K) |
Cp (cal/mol*K) |
S° (cal/mol*K) |
-(G° - H°298.15)/T (cal/mol*K) |
H° - H°298.15 (kcal/mol) |
|---|---|---|---|---|
| 298. | 17.89 | 30.98 | 31.01 | -0.01 |
| 300. | 17.91 | 31.10 | 31.01 | 0.03 |
| 400. | 18.75 | 36.38 | 31.72 | 1.86 |
| 500. | 19.34 | 40.63 | 33.09 | 3.77 |
| 600. | 19.83 | 44.20 | 34.65 | 5.73 |
| 700. | 20.25 | 47.29 | 36.24 | 7.73 |
| 800. | 20.62 | 50.02 | 37.80 | 9.78 |
| 900. | 20.96 | 52.47 | 39.29 | 11.86 |
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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