tungsten
- Formula: W
- Molecular weight: 183.84
- IUPAC Standard InChI: InChI=1S/W
- IUPAC Standard InChIKey: WFKWXMTUELFFGS-UHFFFAOYSA-N
- CAS Registry Number: 7440-33-7
- Chemical structure:
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- Other data available:
- Data at other public NIST sites:
- NIST Atomic Spectra Database - Lines Holdings (on physics web site)
- NIST Atomic Spectra Database - Levels Holdings (on physics web site)
- NIST Atomic Spectra Database - Ground states and ionization energies (on physics web site)
- Gas Phase Kinetics Database
- X-ray Photoelectron Spectroscopy Database, version 5.0
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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) | 3680. to 6000. |
|---|---|
| A | 8.500010 |
| B | -3.708750×10-8 |
| C | 6.967620×10-9 |
| D | -4.521329×10-10 |
| E | -9.817642×10-8 |
| F | 5.474240 |
| G | 17.25280 |
| H | 11.20840 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1966 |
| Temperature (K) |
Cp (cal/mol*K) |
S° (cal/mol*K) |
-(G° - H°298.15)/T (cal/mol*K) |
H° - H°298.15 (kcal/mol) |
|---|---|---|---|---|
| 3680. | 8.50 | 28.33 | 21.39 | 25.55 |
| 3700. | 8.50 | 28.37 | 21.42 | 25.72 |
| 3800. | 8.50 | 28.60 | 21.61 | 26.57 |
| 3900. | 8.50 | 28.82 | 21.79 | 27.42 |
| 4000. | 8.50 | 29.04 | 21.97 | 28.27 |
| 4100. | 8.50 | 29.25 | 22.14 | 29.12 |
| 4200. | 8.50 | 29.45 | 22.32 | 29.97 |
| 4300. | 8.50 | 29.65 | 22.48 | 30.82 |
| 4400. | 8.50 | 29.85 | 22.65 | 31.67 |
| 4500. | 8.50 | 30.04 | 22.81 | 32.52 |
| 4600. | 8.50 | 30.22 | 22.97 | 33.37 |
| 4700. | 8.50 | 30.41 | 23.13 | 34.22 |
| 4800. | 8.50 | 30.59 | 23.28 | 35.07 |
| 4900. | 8.50 | 30.76 | 23.43 | 35.92 |
| 5000. | 8.50 | 30.93 | 23.58 | 36.77 |
| 5100. | 8.50 | 31.10 | 23.73 | 37.62 |
| 5200. | 8.50 | 31.27 | 23.87 | 38.47 |
| 5300. | 8.50 | 31.43 | 24.01 | 39.32 |
| 5400. | 8.50 | 31.59 | 24.15 | 40.17 |
| 5500. | 8.50 | 31.74 | 24.29 | 41.02 |
| 5600. | 8.50 | 31.90 | 24.42 | 41.87 |
| 5700. | 8.50 | 32.05 | 24.55 | 42.72 |
| 5800. | 8.50 | 32.19 | 24.68 | 43.57 |
| 5900. | 8.50 | 32.34 | 24.81 | 44.42 |
| 6000. | 8.50 | 32.48 | 24.94 | 45.27 |
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
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