vanadium dioxide
- Formula: O2V
- Molecular weight: 82.9403
- IUPAC Standard InChI: InChI=1S/2O.V/q2*-2;+4
- IUPAC Standard InChIKey: DUSYNUCUMASASA-UHFFFAOYSA-N
- CAS Registry Number: 12036-21-4
- Chemical structure:
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Gas 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. to 1100. | 1100. to 6000. |
|---|---|---|
| A | 7.231881 | 13.84320 |
| B | 15.75140 | 0.037668 |
| C | -14.24270 | -0.007641 |
| D | 4.591810 | 0.000530 |
| E | -0.026038 | -0.564733 |
| F | -58.42710 | -61.31721 |
| G | 67.90129 | 77.75880 |
| H | -55.60000 | -55.60000 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in December, 1973 | Data last reviewed in December, 1973 |
| 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. | 10.49 | 63.39 | 63.40 | -0.00 |
| 300. | 10.51 | 63.46 | 63.40 | 0.02 |
| 400. | 11.38 | 66.62 | 63.82 | 1.12 |
| 500. | 12.02 | 69.23 | 64.65 | 2.29 |
| 600. | 12.47 | 71.46 | 65.60 | 3.51 |
| 700. | 12.80 | 73.41 | 66.58 | 4.78 |
| 800. | 13.03 | 75.14 | 67.55 | 6.07 |
| 900. | 13.19 | 76.68 | 68.48 | 7.38 |
| 1000. | 13.31 | 78.07 | 69.37 | 8.71 |
| 1100. | 13.41 | 79.35 | 70.22 | 10.04 |
| 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. | 13.41 | 79.35 | 70.22 | 10.04 |
| 1200. | 13.49 | 80.52 | 71.03 | 11.39 |
| 1300. | 13.55 | 81.60 | 71.80 | 12.74 |
| 1400. | 13.59 | 82.61 | 72.54 | 14.10 |
| 1500. | 13.63 | 83.55 | 73.24 | 15.46 |
| 1600. | 13.67 | 84.43 | 73.91 | 16.82 |
| 1700. | 13.69 | 85.26 | 74.56 | 18.19 |
| 1800. | 13.72 | 86.04 | 75.17 | 19.56 |
| 1900. | 13.73 | 86.78 | 75.76 | 20.93 |
| 2000. | 13.75 | 87.49 | 76.33 | 22.31 |
| 2100. | 13.77 | 88.16 | 76.88 | 23.68 |
| 2200. | 13.78 | 88.80 | 77.41 | 25.06 |
| 2300. | 13.79 | 89.41 | 77.92 | 26.44 |
| 2400. | 13.80 | 90.00 | 78.41 | 27.82 |
| 2500. | 13.81 | 90.56 | 78.88 | 29.20 |
| 2600. | 13.82 | 91.10 | 79.34 | 30.58 |
| 2700. | 13.82 | 91.62 | 79.79 | 31.96 |
| 2800. | 13.83 | 92.13 | 80.22 | 33.35 |
| 2900. | 13.83 | 92.61 | 80.64 | 34.73 |
| 3000. | 13.84 | 93.08 | 81.04 | 36.11 |
| 3100. | 13.84 | 93.54 | 81.44 | 37.50 |
| 3200. | 13.85 | 93.98 | 81.83 | 38.88 |
| 3300. | 13.85 | 94.40 | 82.20 | 40.27 |
| 3400. | 13.85 | 94.82 | 82.56 | 41.65 |
| 3500. | 13.86 | 95.22 | 82.92 | 43.04 |
| 3600. | 13.86 | 95.61 | 83.27 | 44.42 |
| 3700. | 13.86 | 95.99 | 83.61 | 45.81 |
| 3800. | 13.87 | 96.36 | 83.94 | 47.20 |
| 3900. | 13.87 | 96.72 | 84.26 | 48.58 |
| 4000. | 13.87 | 97.07 | 84.58 | 49.97 |
| 4100. | 13.87 | 97.41 | 84.88 | 51.36 |
| 4200. | 13.87 | 97.74 | 85.19 | 52.74 |
| 4300. | 13.88 | 98.07 | 85.48 | 54.13 |
| 4400. | 13.88 | 98.39 | 85.77 | 55.52 |
| 4500. | 13.88 | 98.70 | 86.06 | 56.91 |
| 4600. | 13.88 | 99.01 | 86.33 | 58.29 |
| 4700. | 13.88 | 99.31 | 86.61 | 59.68 |
| 4800. | 13.88 | 99.60 | 86.88 | 61.07 |
| 4900. | 13.88 | 99.88 | 87.14 | 62.46 |
| 5000. | 13.88 | 100.2 | 87.40 | 63.85 |
| 5100. | 13.89 | 100.4 | 87.65 | 65.24 |
| 5200. | 13.89 | 100.7 | 87.90 | 66.62 |
| 5300. | 13.89 | 101.0 | 88.14 | 68.01 |
| 5400. | 13.89 | 101.2 | 88.38 | 69.40 |
| 5500. | 13.89 | 101.5 | 88.62 | 70.79 |
| 5600. | 13.89 | 101.7 | 88.85 | 72.18 |
| 5700. | 13.89 | 102.0 | 89.08 | 73.57 |
| 5800. | 13.89 | 102.2 | 89.30 | 74.96 |
| 5900. | 13.89 | 102.5 | 89.52 | 76.35 |
| 6000. | 13.89 | 102.7 | 89.74 | 77.74 |
References
Go To: Top, Gas 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, Gas Phase Heat Capacity (Shomate Equation), References
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