dicopper oxide
- Formula: Cu2O
- Molecular weight: 143.091
- CAS Registry Number: 1317-39-1
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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 (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. - 1100. | 1100. - 1516.7 |
|---|---|---|
| A | 14.20180 | 6.888511 |
| B | 9.045811 | 9.516260 |
| C | -6.321901 | 0.348802 |
| D | 2.647250 | -0.061212 |
| E | -0.129584 | 2.701461 |
| F | -45.82001 | -37.45619 |
| G | 36.09410 | 34.60801 |
| H | -40.80000 | -40.80000 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in December, 1977 | Data last reviewed in December, 1977 |
| 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. | 14.95 | 22.07 | 22.07 | -0.00 |
| 300. | 14.98 | 22.17 | 22.08 | 0.03 |
| 400. | 16.17 | 26.66 | 22.68 | 1.59 |
| 500. | 16.96 | 30.35 | 23.85 | 3.25 |
| 600. | 17.57 | 33.50 | 25.21 | 4.98 |
| 700. | 18.08 | 36.25 | 26.59 | 6.76 |
| 800. | 18.55 | 38.69 | 27.95 | 8.59 |
| 900. | 18.99 | 40.90 | 29.27 | 10.47 |
| 1000. | 19.44 | 42.93 | 30.54 | 12.39 |
| 1100. | 19.92 | 44.80 | 31.75 | 14.36 |
| Temperature (K) |
Cp (cal/mol*K) |
S° (cal/mol*K) |
-(G° - H°298.15)/T (cal/mol*K) |
H° - H°298.15 (kcal/mol) |
|---|---|---|---|---|
| 1100. | 19.93 | 44.80 | 31.75 | 14.35 |
| 1200. | 20.58 | 46.56 | 32.91 | 16.38 |
| 1300. | 21.31 | 48.24 | 34.03 | 18.47 |
| 1400. | 22.11 | 49.85 | 35.10 | 20.64 |
| 1500. | 22.94 | 51.40 | 36.13 | 22.90 |
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
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