Potassium fluoride
- Formula: FK
- Molecular weight: 58.0967
- IUPAC Standard InChI: InChI=1S/FH.K/h1H;/q;+1/p-1
- IUPAC Standard InChIKey: NROKBHXJSPEDAR-UHFFFAOYSA-M
- CAS Registry Number: 7789-23-3
- 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) | 1131. - 3000. |
|---|---|
| A | 71.96522 |
| B | -2.116748×10-10 |
| C | 1.309726×10-10 |
| D | -2.449678×10-11 |
| E | -4.589305×10-12 |
| F | -575.9234 |
| G | 154.7226 |
| H | -554.4679 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1969 |
| Temperature (K) |
Cp (J/mol*K) |
S° (J/mol*K) |
-(G° - H°298.15)/T (J/mol*K) |
H° - H°298.15 (kJ/mol) |
|---|---|---|---|---|
| 1131. | 71.97 | 163.6 | 110.6 | 59.94 |
| 1200. | 71.97 | 167.8 | 113.8 | 64.90 |
| 1300. | 71.97 | 173.6 | 118.1 | 72.10 |
| 1400. | 71.97 | 178.9 | 122.3 | 79.30 |
| 1500. | 71.97 | 183.9 | 126.2 | 86.49 |
| 1600. | 71.97 | 188.5 | 130.0 | 93.69 |
| 1700. | 71.97 | 192.9 | 133.6 | 100.9 |
| 1800. | 71.97 | 197.0 | 137.0 | 108.1 |
| 1900. | 71.97 | 200.9 | 140.2 | 115.3 |
| 2000. | 71.97 | 204.6 | 143.4 | 122.5 |
| 2100. | 71.97 | 208.1 | 146.4 | 129.7 |
| 2200. | 71.97 | 211.5 | 149.3 | 136.9 |
| 2300. | 71.97 | 214.7 | 152.0 | 144.1 |
| 2400. | 71.97 | 217.7 | 154.7 | 151.3 |
| 2500. | 71.97 | 220.7 | 157.3 | 158.5 |
| 2600. | 71.97 | 223.5 | 159.8 | 165.7 |
| 2700. | 71.97 | 226.2 | 162.2 | 172.9 |
| 2800. | 71.97 | 228.8 | 164.5 | 180.0 |
| 2900. | 71.97 | 231.3 | 166.8 | 187.2 |
| 3000. | 71.97 | 233.8 | 169.0 | 194.4 |
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
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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