Beryllium tungsten oxide
- Formula: BeO4W
- Molecular weight: 256.85
- CAS Registry Number: 18304-19-3
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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. - 2000. |
|---|---|
| A | 25.04661 |
| B | 14.44390 |
| C | -3.135070 |
| D | 0.745780 |
| E | -0.520910 |
| F | -371.5430 |
| G | 44.29051 |
| H | -361.7000 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in March, 1967 |
| 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. | 23.23 | 21.07 | 21.13 | -0.02 |
| 300. | 23.33 | 21.23 | 21.13 | 0.03 |
| 400. | 27.11 | 28.51 | 22.08 | 2.57 |
| 500. | 29.49 | 34.83 | 24.02 | 5.41 |
| 600. | 31.30 | 40.38 | 26.29 | 8.45 |
| 700. | 32.81 | 45.32 | 28.66 | 11.66 |
| 800. | 34.16 | 49.79 | 31.03 | 15.01 |
| 900. | 35.41 | 53.88 | 33.34 | 18.49 |
| 1000. | 36.58 | 57.68 | 35.59 | 22.09 |
| 1100. | 37.70 | 61.22 | 37.76 | 25.80 |
| 1200. | 38.79 | 64.54 | 39.85 | 29.63 |
| 1300. | 39.86 | 67.69 | 41.87 | 33.56 |
| 1400. | 40.90 | 70.68 | 43.83 | 37.60 |
| 1500. | 41.94 | 73.54 | 45.71 | 41.74 |
| 1600. | 42.98 | 76.28 | 47.54 | 45.99 |
| 1700. | 44.02 | 78.92 | 49.31 | 50.34 |
| 1800. | 45.08 | 81.46 | 51.02 | 54.79 |
| 1900. | 46.14 | 83.93 | 52.69 | 59.35 |
| 2000. | 47.23 | 86.32 | 54.31 | 64.02 |
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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