calcium
- Formula: Ca
- Molecular weight: 40.078
- IUPAC Standard InChIKey: OYPRJOBELJOOCE-UHFFFAOYSA-N
- CAS Registry Number: 7440-70-2
- Chemical structure:
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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.
Temperature (K) | 298. to 1100. | 298. to 716. | 716. to 1115. |
---|---|---|---|
A | 19.77517 | 11.11735 | -40.63785 |
B | 10.10813 | 38.52364 | 126.7765 |
C | 14.50338 | -8.891419 | -69.73891 |
D | -5.529491 | -9.618305 | 17.93162 |
E | 0.178031 | 0.391850 | 5.409494 |
F | -5.862997 | -2.563503 | 24.49192 |
G | 62.91606 | 47.71852 | -15.67297 |
H | 0.000000 | 1.056001 | 1.056001 |
Reference | Chase, 1998 | Chase, 1998 | Chase, 1998 |
Comment | α phase; Data last reviewed in September, 1983 | β phase; Data last reviewed in September, 1983 | β phase; Data last reviewed in September, 1983 |
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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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