potassium iodide
- Formula: IK
- Molecular weight: 166.0028
- IUPAC Standard InChI: InChI=1S/HI.K/h1H;/q;+1/p-1
- IUPAC Standard InChIKey: NLKNQRATVPKPDG-UHFFFAOYSA-M
- CAS Registry Number: 7681-11-0
- Chemical structure:
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Liquid 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) | 954. to 2500. |
|---|---|
| A | 72.38320 |
| B | -1.627693×10-9 |
| C | 1.020901×10-9 |
| D | -2.026337×10-10 |
| E | -4.120467×10-11 |
| F | -334.4271 |
| G | 201.6935 |
| H | -312.8465 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1967 |
| Temperature (K) |
Cp (J/mol*K) |
S° (J/mol*K) |
-(G° - H°298.15)/T (J/mol*K) |
H° - H°298.15 (kJ/mol) |
|---|---|---|---|---|
| 954. | 72.38 | 198.3 | 148.5 | 47.47 |
| 1000. | 72.38 | 201.7 | 150.9 | 50.80 |
| 1100. | 72.38 | 208.6 | 155.8 | 58.04 |
| 1200. | 72.38 | 214.9 | 160.5 | 65.28 |
| 1300. | 72.38 | 220.7 | 164.9 | 72.52 |
| 1400. | 72.38 | 226.0 | 169.1 | 79.76 |
| 1500. | 72.38 | 231.0 | 173.0 | 86.99 |
| 1600. | 72.38 | 235.7 | 176.8 | 94.23 |
| 1700. | 72.38 | 240.1 | 180.4 | 101.5 |
| 1800. | 72.38 | 244.2 | 183.8 | 108.7 |
| 1900. | 72.38 | 248.2 | 187.1 | 115.9 |
| 2000. | 72.38 | 251.9 | 190.3 | 123.2 |
| 2100. | 72.38 | 255.4 | 193.3 | 130.4 |
| 2200. | 72.38 | 258.8 | 196.2 | 137.7 |
| 2300. | 72.38 | 262.0 | 199.0 | 144.9 |
| 2400. | 72.38 | 265.1 | 201.7 | 152.1 |
| 2500. | 72.38 | 268.0 | 204.3 | 159.4 |
References
Go To: Top, Liquid 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, Liquid Phase Heat Capacity (Shomate Equation), References
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