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 (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. - 2000. |
|---|---|
| A | 101.7758 |
| B | 10.31753 |
| C | -0.095726 |
| D | 0.027880 |
| E | -2.960218 |
| F | -100.1942 |
| G | 161.8865 |
| H | -59.41322 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in December, 1960 |
| 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. | 71.51 | 58.41 | 58.61 | -0.06 |
| 300. | 71.97 | 58.89 | 58.61 | 0.08 |
| 400. | 87.39 | 82.00 | 61.62 | 8.15 |
| 500. | 95.07 | 102.4 | 67.78 | 17.31 |
| 600. | 99.72 | 120.2 | 75.07 | 27.07 |
| 700. | 102.9 | 135.8 | 82.65 | 37.21 |
| 800. | 105.4 | 149.7 | 90.18 | 47.63 |
| 900. | 107.3 | 162.2 | 97.50 | 58.27 |
| 1000. | 109.1 | 173.6 | 104.6 | 69.09 |
| 1100. | 110.6 | 184.1 | 111.3 | 80.07 |
| 1200. | 112.0 | 193.8 | 117.8 | 91.20 |
| 1300. | 113.3 | 202.8 | 124.0 | 102.5 |
| 1400. | 114.6 | 211.3 | 129.9 | 113.9 |
| 1500. | 115.8 | 219.2 | 135.6 | 125.4 |
| 1600. | 117.0 | 226.7 | 141.1 | 137.0 |
| 1700. | 118.2 | 233.9 | 146.3 | 148.8 |
| 1800. | 119.3 | 240.6 | 151.4 | 160.7 |
| 1900. | 120.4 | 247.1 | 156.2 | 172.6 |
| 2000. | 121.5 | 253.3 | 160.9 | 184.7 |
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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