magnesium oxide
- Formula: MgO
- Molecular weight: 40.3044
- IUPAC Standard InChI: InChI=1S/Mg.O
- IUPAC Standard InChIKey: CPLXHLVBOLITMK-UHFFFAOYSA-N
- CAS Registry Number: 1309-48-4
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: Magnesium monoxide
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Liquid 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) | 3105. - 5000. |
|---|---|
| A | 16.00000 |
| B | 0.000000 |
| C | 0.000000 |
| D | 0.000000 |
| E | 0.000000 |
| F | -138.8610 |
| G | 22.40610 |
| H | -127.2970 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in December, 1974 |
| Temperature (K) |
Cp (cal/mol*K) |
S° (cal/mol*K) |
-(G° - H°298.15)/T (cal/mol*K) |
H° - H°298.15 (kcal/mol) |
|---|---|---|---|---|
| 3105. | 16.00 | 40.53 | 28.26 | 38.12 |
| 3200. | 16.00 | 41.02 | 28.63 | 39.64 |
| 3300. | 16.00 | 41.51 | 29.01 | 41.24 |
| 3400. | 16.00 | 41.99 | 29.39 | 42.84 |
| 3500. | 16.00 | 42.45 | 29.75 | 44.44 |
| 3600. | 16.00 | 42.90 | 30.11 | 46.04 |
| 3700. | 16.00 | 43.34 | 30.46 | 47.64 |
| 3800. | 16.00 | 43.77 | 30.81 | 49.24 |
| 3900. | 16.00 | 44.18 | 31.15 | 50.84 |
| 4000. | 16.00 | 44.59 | 31.48 | 52.44 |
| 4100. | 16.00 | 44.98 | 31.80 | 54.04 |
| 4200. | 16.00 | 45.37 | 32.12 | 55.64 |
| 4300. | 16.00 | 45.74 | 32.43 | 57.24 |
| 4400. | 16.00 | 46.11 | 32.74 | 58.84 |
| 4500. | 16.00 | 46.47 | 33.04 | 60.44 |
| 4600. | 16.00 | 46.82 | 33.34 | 62.04 |
| 4700. | 16.00 | 47.17 | 33.63 | 63.64 |
| 4800. | 16.00 | 47.50 | 33.91 | 65.24 |
| 4900. | 16.00 | 47.83 | 34.19 | 66.84 |
| 5000. | 16.00 | 48.16 | 34.47 | 68.44 |
References
Go To: Top, Liquid 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, Liquid Phase Heat Capacity (Shomate Equation), References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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