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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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. - 3105. |
|---|---|
| A | 47.25995 |
| B | 5.681621 |
| C | -0.872665 |
| D | 0.104300 |
| E | -1.053955 |
| F | -619.1316 |
| G | 76.46176 |
| H | -601.2408 |
| 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) |
|---|---|---|---|---|
| 298. | 37.01 | 26.84 | 26.92 | -0.03 |
| 300. | 37.18 | 27.08 | 26.92 | 0.05 |
| 400. | 42.81 | 38.66 | 28.44 | 4.08 |
| 500. | 45.68 | 48.55 | 31.50 | 8.52 |
| 600. | 47.45 | 57.04 | 35.07 | 13.18 |
| 700. | 48.69 | 64.46 | 38.75 | 18.00 |
| 800. | 49.65 | 71.02 | 42.38 | 22.91 |
| 900. | 50.44 | 76.92 | 45.90 | 27.92 |
| 1000. | 51.12 | 82.27 | 49.27 | 33.00 |
| 1100. | 51.72 | 87.17 | 52.50 | 38.14 |
| 1200. | 52.27 | 91.69 | 55.58 | 43.34 |
| 1300. | 52.78 | 95.90 | 58.52 | 48.59 |
| 1400. | 53.25 | 99.83 | 61.33 | 53.90 |
| 1500. | 53.70 | 103.5 | 64.02 | 59.24 |
| 1600. | 54.13 | 107.0 | 66.60 | 64.64 |
| 1700. | 54.54 | 110.3 | 69.07 | 70.07 |
| 1800. | 54.94 | 113.4 | 71.45 | 75.54 |
| 1900. | 55.33 | 116.4 | 73.74 | 81.06 |
| 2000. | 55.70 | 119.2 | 75.94 | 86.61 |
| 2100. | 56.07 | 122.0 | 78.07 | 92.20 |
| 2200. | 56.43 | 124.6 | 80.13 | 97.82 |
| 2300. | 56.78 | 127.1 | 82.11 | 103.5 |
| 2400. | 57.13 | 129.5 | 84.04 | 109.2 |
| 2500. | 57.47 | 131.9 | 85.91 | 114.9 |
| 2600. | 57.81 | 134.1 | 87.72 | 120.7 |
| 2700. | 58.15 | 136.3 | 89.48 | 126.5 |
| 2800. | 58.48 | 138.4 | 91.19 | 132.3 |
| 2900. | 58.82 | 140.5 | 92.85 | 138.2 |
| 3000. | 59.15 | 142.5 | 94.48 | 144.1 |
| 3100. | 59.48 | 144.4 | 96.06 | 150.0 |
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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