dilithium acetylide
- Formula: C2Li2
- Molecular weight: 37.903
- CAS Registry Number: 1070-75-3
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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.
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| Temperature (K) | 298. - 2000. |
|---|---|
| A | 24.32500 |
| B | 2.465949 |
| C | -0.022879 |
| D | 0.006663 |
| E | -0.707509 |
| F | -23.94699 |
| G | 38.69180 |
| H | -14.20010 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in December, 1960 |
| Temperature (K) |
Cp (cal/mol*K) |
S° (cal/mol*K) |
-(G° - H°298.15)/T (cal/mol*K) |
H° - H°298.15 (kcal/mol) |
|---|---|---|---|---|
| 298. | 17.09 | 13.96 | 14.01 | -0.01 |
| 300. | 17.20 | 14.07 | 14.01 | 0.02 |
| 400. | 20.89 | 19.60 | 14.73 | 1.95 |
| 500. | 22.72 | 24.48 | 16.20 | 4.14 |
| 600. | 23.83 | 28.72 | 17.94 | 6.47 |
| 700. | 24.60 | 32.46 | 19.75 | 8.89 |
| 800. | 25.18 | 35.78 | 21.55 | 11.38 |
| 900. | 25.66 | 38.78 | 23.30 | 13.93 |
| 1000. | 26.07 | 41.50 | 24.99 | 16.51 |
| 1100. | 26.43 | 44.00 | 26.61 | 19.14 |
| 1200. | 26.77 | 46.32 | 28.15 | 21.80 |
| 1300. | 27.09 | 48.47 | 29.63 | 24.49 |
| 1400. | 27.39 | 50.49 | 31.05 | 27.22 |
| 1500. | 27.68 | 52.39 | 32.41 | 29.97 |
| 1600. | 27.96 | 54.19 | 33.72 | 32.75 |
| 1700. | 28.24 | 55.89 | 34.97 | 35.56 |
| 1800. | 28.51 | 57.51 | 36.18 | 38.40 |
| 1900. | 28.78 | 59.06 | 37.34 | 41.26 |
| 2000. | 29.04 | 60.54 | 38.47 | 44.15 |
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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