sodium metaborate, anhydrous
- Formula: BNaO2
- Molecular weight: 65.800
- CAS Registry Number: 7775-19-1
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Gas Phase Heat Capacity (Shomate Equation)
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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) | 2500. to 6000. |
|---|---|
| A | 81.33445 |
| B | 0.967425 |
| C | -0.189338 |
| D | 0.012780 |
| E | -5.695930 |
| F | -686.7659 |
| G | 366.1565 |
| H | -648.5200 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1971 |
| Temperature (K) |
Cp (J/mol*K) |
S° (J/mol*K) |
-(G° - H°298.15)/T (J/mol*K) |
H° - H°298.15 (kJ/mol) |
|---|---|---|---|---|
| 2500. | 81.86 | 443.0 | 375.2 | 169.5 |
| 2600. | 81.95 | 446.2 | 377.9 | 177.7 |
| 2700. | 82.04 | 449.3 | 380.5 | 185.9 |
| 2800. | 82.11 | 452.3 | 383.0 | 194.1 |
| 2900. | 82.18 | 455.2 | 385.4 | 202.3 |
| 3000. | 82.24 | 458.0 | 387.8 | 210.6 |
| 3100. | 82.30 | 460.7 | 390.1 | 218.8 |
| 3200. | 82.35 | 463.3 | 392.4 | 227.0 |
| 3300. | 82.40 | 465.8 | 394.5 | 235.3 |
| 3400. | 82.44 | 468.3 | 396.7 | 243.5 |
| 3500. | 82.48 | 470.7 | 398.8 | 251.8 |
| 3600. | 82.52 | 473.0 | 400.8 | 260.0 |
| 3700. | 82.55 | 475.3 | 402.8 | 268.3 |
| 3800. | 82.58 | 477.5 | 404.7 | 276.5 |
| 3900. | 82.61 | 479.6 | 406.6 | 284.8 |
| 4000. | 82.64 | 481.7 | 408.5 | 293.0 |
| 4100. | 82.66 | 483.8 | 410.3 | 301.3 |
| 4200. | 82.68 | 485.7 | 412.0 | 309.6 |
| 4300. | 82.70 | 487.7 | 413.8 | 317.8 |
| 4400. | 82.72 | 489.6 | 415.5 | 326.1 |
| 4500. | 82.74 | 491.5 | 417.1 | 334.4 |
| 4600. | 82.75 | 493.3 | 418.8 | 342.7 |
| 4700. | 82.77 | 495.1 | 420.4 | 350.9 |
| 4800. | 82.78 | 496.8 | 422.0 | 359.2 |
| 4900. | 82.80 | 498.5 | 423.5 | 367.5 |
| 5000. | 82.81 | 500.2 | 425.0 | 375.8 |
| 5100. | 82.82 | 501.8 | 426.5 | 384.0 |
| 5200. | 82.83 | 503.4 | 428.0 | 392.3 |
| 5300. | 82.84 | 505.0 | 429.4 | 400.6 |
| 5400. | 82.85 | 506.6 | 430.8 | 408.9 |
| 5500. | 82.87 | 508.1 | 432.2 | 417.2 |
| 5600. | 82.88 | 509.6 | 433.6 | 425.5 |
| 5700. | 82.89 | 511.0 | 434.9 | 433.8 |
| 5800. | 82.90 | 512.5 | 436.3 | 442.0 |
| 5900. | 82.91 | 513.9 | 437.6 | 450.3 |
| 6000. | 82.93 | 515.3 | 438.8 | 458.6 |
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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