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 (J/mol*K)
H° = standard enthalpy (kJ/mol)
S° = standard entropy (J/mol*K)
t = temperature (K) / 1000.
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| Temperature (K) | 3105. - 5000. |
|---|---|
| A | 66.94400 |
| B | 0.000000 |
| C | 0.000000 |
| D | 0.000000 |
| E | 0.000000 |
| F | -580.9944 |
| G | 93.74712 |
| H | -532.6106 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in December, 1974 |
| Temperature (K) |
Cp (J/mol*K) |
S° (J/mol*K) |
-(G° - H°298.15)/T (J/mol*K) |
H° - H°298.15 (kJ/mol) |
|---|---|---|---|---|
| 3105. | 66.94 | 169.6 | 118.2 | 159.5 |
| 3200. | 66.94 | 171.6 | 119.8 | 165.8 |
| 3300. | 66.94 | 173.7 | 121.4 | 172.5 |
| 3400. | 66.94 | 175.7 | 123.0 | 179.2 |
| 3500. | 66.94 | 177.6 | 124.5 | 185.9 |
| 3600. | 66.94 | 179.5 | 126.0 | 192.6 |
| 3700. | 66.94 | 181.3 | 127.5 | 199.3 |
| 3800. | 66.94 | 183.1 | 128.9 | 206.0 |
| 3900. | 66.94 | 184.9 | 130.3 | 212.7 |
| 4000. | 66.94 | 186.6 | 131.7 | 219.4 |
| 4100. | 66.94 | 188.2 | 133.1 | 226.1 |
| 4200. | 66.94 | 189.8 | 134.4 | 232.8 |
| 4300. | 66.94 | 191.4 | 135.7 | 239.5 |
| 4400. | 66.94 | 192.9 | 137.0 | 246.2 |
| 4500. | 66.94 | 194.4 | 138.2 | 252.9 |
| 4600. | 66.94 | 195.9 | 139.5 | 259.6 |
| 4700. | 66.94 | 197.3 | 140.7 | 266.3 |
| 4800. | 66.94 | 198.8 | 141.9 | 272.9 |
| 4900. | 66.94 | 200.1 | 143.1 | 279.6 |
| 5000. | 66.94 | 201.5 | 144.2 | 286.3 |
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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