Lithium silicate
- Formula: Li2O5Si2
- Molecular weight: 150.050
- CAS Registry Number: 13568-46-2
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Liquid 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) | 1307. - 3000. |
|---|---|
| A | 60.00010 |
| B | 2.016751×10-8 |
| C | -8.703562×10-9 |
| D | 1.259651×10-9 |
| E | 3.470330×10-9 |
| F | -625.3609 |
| G | 95.94510 |
| H | -600.6379 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1967 |
| Temperature (K) |
Cp (cal/mol*K) |
S° (cal/mol*K) |
-(G° - H°298.15)/T (cal/mol*K) |
H° - H°298.15 (kcal/mol) |
|---|---|---|---|---|
| 1307. | 60.00 | 112.0 | 70.92 | 53.70 |
| 1400. | 60.00 | 116.1 | 73.79 | 59.28 |
| 1500. | 60.00 | 120.3 | 76.75 | 65.28 |
| 1600. | 60.00 | 124.1 | 79.60 | 71.28 |
| 1700. | 60.00 | 127.8 | 82.33 | 77.28 |
| 1800. | 60.00 | 131.2 | 84.95 | 83.28 |
| 1900. | 60.00 | 134.5 | 87.47 | 89.28 |
| 2000. | 60.00 | 137.5 | 89.90 | 95.28 |
| 2100. | 60.00 | 140.5 | 92.23 | 101.3 |
| 2200. | 60.00 | 143.3 | 94.49 | 107.3 |
| 2300. | 60.00 | 145.9 | 96.67 | 113.3 |
| 2400. | 60.00 | 148.5 | 98.77 | 119.3 |
| 2500. | 60.00 | 150.9 | 100.8 | 125.3 |
| 2600. | 60.00 | 153.3 | 102.8 | 131.3 |
| 2700. | 60.00 | 155.5 | 104.7 | 137.3 |
| 2800. | 60.00 | 157.7 | 106.6 | 143.3 |
| 2900. | 60.00 | 159.8 | 108.4 | 149.3 |
| 3000. | 60.00 | 161.9 | 110.1 | 155.3 |
References
Go To: Top, Liquid 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, Liquid Phase Heat Capacity (Shomate Equation), References
- Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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