silicon carbide
- Formula: CSi
- Molecular weight: 40.0962
- CAS Registry Number: 409-21-2
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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 (cal/mol*K)
H° = standard enthalpy (kcal/mol)
S° = standard entropy (cal/mol*K)
t = temperature (K) / 1000.
| Temperature (K) | 298. - 1000. | 1000. - 4000. | 298. - 1100. | 1100. - 4000. |
|---|---|---|---|---|
| A | 4.913621 | 11.20990 | 4.899640 | 11.52540 |
| B | 15.43490 | 1.397220 | 15.14620 | 1.196021 |
| C | -12.66450 | -0.259419 | -11.84040 | -0.247991 |
| D | 4.053091 | 0.022233 | 3.543980 | 0.020636 |
| E | -0.186866 | -0.824301 | -0.181637 | -0.935070 |
| F | -19.77460 | -22.81720 | -20.14660 | -23.53380 |
| G | 4.758241 | 13.61740 | 4.854030 | 13.80550 |
| H | -17.09990 | -17.09990 | -17.50000 | -17.50000 |
| Reference | Chase, 1998 | Chase, 1998 | Chase, 1998 | Chase, 1998 |
| Comment | α phase; Data last reviewed in March, 1966 | α phase; Data last reviewed in March, 1966 | β phase; Data last reviewed in March, 1966 | β phase; Data last reviewed in March, 1966 |
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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
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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