Sodium iodide
- Formula: INa
- Molecular weight: 149.89424
- IUPAC Standard InChI: InChI=1S/HI.Na/h1H;/q;+1/p-1
- IUPAC Standard InChIKey: FVAUCKIRQBBSSJ-UHFFFAOYSA-M
- CAS Registry Number: 7681-82-5
- Chemical structure:
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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. - 933. |
|---|---|
| A | 50.19963 |
| B | 10.22787 |
| C | 0.564543 |
| D | -0.221018 |
| E | -0.094625 |
| F | -303.6036 |
| G | 155.6440 |
| H | -287.8592 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in September, 1963 |
| 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. | 52.23 | 98.47 | 98.50 | -0.01 |
| 300. | 52.26 | 98.82 | 98.50 | 0.1 |
| 400. | 53.78 | 114.1 | 100.6 | 5.40 |
| 500. | 55.05 | 126.2 | 104.5 | 10.84 |
| 600. | 56.23 | 136.4 | 109.0 | 16.41 |
| 700. | 57.37 | 145.1 | 113.6 | 22.09 |
| 800. | 58.48 | 152.8 | 118.0 | 27.88 |
| 900. | 59.58 | 159.8 | 122.3 | 33.78 |
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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