Difluorosilylene
- Formula: F2Si
- Molecular weight: 66.0823
- IUPAC Standard InChI: InChI=1S/F2Si/c1-3-2
- IUPAC Standard InChIKey: MGNHOGAVECORPT-UHFFFAOYSA-N
- CAS Registry Number: 13966-66-0
- 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. - 1000. | 1000. - 6000. |
|---|---|---|
| A | 7.602001 | 13.77780 |
| B | 16.02140 | 0.138858 |
| C | -15.62910 | -0.057240 |
| D | 5.448770 | 0.008324 |
| E | -0.044278 | -0.474608 |
| F | -143.5000 | -145.9960 |
| G | 66.14350 | 75.83829 |
| H | -140.5000 | -140.5000 |
| 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. | 10.63 | 61.32 | 61.32 | -0.00 |
| 300. | 10.66 | 61.39 | 61.32 | 0.02 |
| 400. | 11.58 | 64.59 | 61.75 | 1.13 |
| 500. | 12.21 | 67.25 | 62.59 | 2.33 |
| 600. | 12.64 | 69.51 | 63.56 | 3.57 |
| 700. | 12.94 | 71.49 | 64.56 | 4.85 |
| 800. | 13.14 | 73.23 | 65.53 | 6.15 |
| 900. | 13.28 | 74.78 | 66.48 | 7.48 |
| 1000. | 13.40 | 76.19 | 67.38 | 8.81 |
| Temperature (K) |
Cp (cal/mol*K) |
S° (cal/mol*K) |
-(G° - H°298.15)/T (cal/mol*K) |
H° - H°298.15 (kcal/mol) |
|---|---|---|---|---|
| 1000. | 13.39 | 76.19 | 67.38 | 8.81 |
| 1100. | 13.48 | 77.47 | 68.24 | 10.15 |
| 1200. | 13.55 | 78.65 | 69.06 | 11.50 |
| 1300. | 13.60 | 79.73 | 69.84 | 12.86 |
| 1400. | 13.64 | 80.74 | 70.58 | 14.22 |
| 1500. | 13.67 | 81.68 | 71.29 | 15.59 |
| 1600. | 13.70 | 82.57 | 71.97 | 16.96 |
| 1700. | 13.73 | 83.40 | 72.62 | 18.33 |
| 1800. | 13.74 | 84.18 | 73.24 | 19.70 |
| 1900. | 13.76 | 84.93 | 73.83 | 21.08 |
| 2000. | 13.77 | 85.63 | 74.41 | 22.46 |
| 2100. | 13.79 | 86.31 | 74.96 | 23.83 |
| 2200. | 13.80 | 86.95 | 75.49 | 25.21 |
| 2300. | 13.81 | 87.56 | 76.00 | 26.59 |
| 2400. | 13.81 | 88.15 | 76.49 | 27.97 |
| 2500. | 13.82 | 88.71 | 76.97 | 29.36 |
| 2600. | 13.83 | 89.25 | 77.43 | 30.74 |
| 2700. | 13.83 | 89.78 | 77.88 | 32.12 |
| 2800. | 13.84 | 90.28 | 78.31 | 33.50 |
| 2900. | 13.85 | 90.77 | 78.73 | 34.89 |
| 3000. | 13.85 | 91.24 | 79.14 | 36.27 |
| 3100. | 13.86 | 91.69 | 79.54 | 37.66 |
| 3200. | 13.86 | 92.13 | 79.93 | 39.05 |
| 3300. | 13.87 | 92.56 | 80.30 | 40.43 |
| 3400. | 13.87 | 92.97 | 80.67 | 41.82 |
| 3500. | 13.88 | 93.37 | 81.03 | 43.21 |
| 3600. | 13.89 | 93.76 | 81.38 | 44.60 |
| 3700. | 13.89 | 94.14 | 81.72 | 45.98 |
| 3800. | 13.90 | 94.51 | 82.05 | 47.37 |
| 3900. | 13.91 | 94.88 | 82.37 | 48.76 |
| 4000. | 13.92 | 95.23 | 82.69 | 50.16 |
| 4100. | 13.93 | 95.57 | 83.00 | 51.55 |
| 4200. | 13.94 | 95.91 | 83.30 | 52.94 |
| 4300. | 13.95 | 96.24 | 83.60 | 54.34 |
| 4400. | 13.97 | 96.56 | 83.89 | 55.73 |
| 4500. | 13.98 | 96.87 | 84.18 | 57.13 |
| 4600. | 13.99 | 97.18 | 84.45 | 58.53 |
| 4700. | 14.01 | 97.48 | 84.73 | 59.93 |
| 4800. | 14.03 | 97.77 | 85.00 | 61.33 |
| 4900. | 14.04 | 98.06 | 85.26 | 62.73 |
| 5000. | 14.06 | 98.35 | 85.52 | 64.14 |
| 5100. | 14.08 | 98.63 | 85.77 | 65.55 |
| 5200. | 14.10 | 98.90 | 86.02 | 66.96 |
| 5300. | 14.13 | 99.17 | 86.27 | 68.37 |
| 5400. | 14.15 | 99.43 | 86.51 | 69.78 |
| 5500. | 14.18 | 99.69 | 86.75 | 71.20 |
| 5600. | 14.21 | 99.95 | 86.98 | 72.62 |
| 5700. | 14.24 | 100.2 | 87.21 | 74.04 |
| 5800. | 14.27 | 100.4 | 87.44 | 75.46 |
| 5900. | 14.30 | 100.7 | 87.66 | 76.89 |
| 6000. | 14.34 | 100.9 | 87.88 | 78.32 |
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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