metaboric acid
- Formula: BHO2
- Molecular weight: 43.818
- CAS Registry Number: 13460-50-9
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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 (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 298. - 900. | 900. - 1500. |
|---|---|---|
| A | 179.5823 | 819.2356 |
| B | -477.6580 | -1176.131 |
| C | 719.8781 | 717.4681 |
| D | -327.8440 | -154.9628 |
| E | -3.376933 | -112.7889 |
| F | -852.1553 | -1294.320 |
| G | 360.5294 | 947.9480 |
| H | -802.7841 | -802.7841 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | Data last reviewed in December, 1964 | Data last reviewed in December, 1964 |
| Temperature (K) |
Cp (J/mol*K) |
S° (J/mol*K) |
-(G° - H°298.15)/T (J/mol*K) |
H° - H°298.15 (kJ/mol) |
|---|---|---|---|---|
| 298. | 54.47 | 48.86 | 48.96 | -0.03 |
| 300. | 54.70 | 49.22 | 48.96 | 0.08 |
| 400. | 61.61 | 66.07 | 51.19 | 5.95 |
| 500. | 66.23 | 80.30 | 55.62 | 12.34 |
| 600. | 71.95 | 92.86 | 60.80 | 19.24 |
| 700. | 78.62 | 104.4 | 66.22 | 26.76 |
| 800. | 85.05 | 115.4 | 71.69 | 34.95 |
| 900. | 89.62 | 125.7 | 77.12 | 43.71 |
| Temperature (K) |
Cp (J/mol*K) |
S° (J/mol*K) |
-(G° - H°298.15)/T (J/mol*K) |
H° - H°298.15 (kJ/mol) |
|---|---|---|---|---|
| 900. | 89.65 | 125.7 | 77.11 | 43.69 |
| 1000. | 92.82 | 135.3 | 82.45 | 52.84 |
| 1100. | 94.16 | 144.2 | 87.67 | 62.20 |
| 1200. | 94.93 | 152.4 | 92.73 | 71.65 |
| 1300. | 95.59 | 160.1 | 97.62 | 81.18 |
| 1400. | 96.13 | 167.2 | 102.3 | 90.77 |
| 1500. | 96.21 | 173.8 | 106.9 | 100.4 |
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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