potassium cyanide
- Formula: CKN
- Molecular weight: 65.1157
- CAS Registry Number: 151-50-8
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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 (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 895. - 3000. |
|---|---|
| A | 18.00000 |
| B | -5.113010×10-11 |
| C | 2.953841×10-11 |
| D | -5.286439×10-12 |
| E | -1.477300×10-12 |
| F | -30.25870 |
| G | 53.88640 |
| H | -24.89199 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in March, 1966 |
| Temperature (K) |
Cp (cal/mol*K) |
S° (cal/mol*K) |
-(G° - H°298.15)/T (cal/mol*K) |
H° - H°298.15 (kcal/mol) |
|---|---|---|---|---|
| 895. | 18.00 | 51.89 | 39.89 | 10.74 |
| 900. | 18.00 | 51.99 | 39.95 | 10.83 |
| 1000. | 18.00 | 53.89 | 41.25 | 12.63 |
| 1100. | 18.00 | 55.60 | 42.48 | 14.43 |
| 1200. | 18.00 | 57.17 | 43.64 | 16.23 |
| 1300. | 18.00 | 58.61 | 44.74 | 18.03 |
| 1400. | 18.00 | 59.94 | 45.78 | 19.83 |
| 1500. | 18.00 | 61.18 | 46.76 | 21.63 |
| 1600. | 18.00 | 62.35 | 47.70 | 23.43 |
| 1700. | 18.00 | 63.44 | 48.59 | 25.23 |
| 1800. | 18.00 | 64.47 | 49.45 | 27.03 |
| 1900. | 18.00 | 65.44 | 50.26 | 28.83 |
| 2000. | 18.00 | 66.36 | 51.05 | 30.63 |
| 2100. | 18.00 | 67.24 | 51.80 | 32.43 |
| 2200. | 18.00 | 68.08 | 52.52 | 34.23 |
| 2300. | 18.00 | 68.88 | 53.21 | 36.03 |
| 2400. | 18.00 | 69.64 | 53.88 | 37.83 |
| 2500. | 18.00 | 70.38 | 54.53 | 39.63 |
| 2600. | 18.00 | 71.09 | 55.15 | 41.43 |
| 2700. | 18.00 | 71.76 | 55.75 | 43.23 |
| 2800. | 18.00 | 72.42 | 56.34 | 45.03 |
| 2900. | 18.00 | 73.05 | 56.90 | 46.83 |
| 3000. | 18.00 | 73.66 | 57.45 | 48.63 |
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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