Terbium: enthalpies and thermodynamics
Temperatures
Melting point: 1629 [1356 °C (2473 °F)] K
Boiling point: 3503 [3230 °C (5846 °F)] K
Liquid range: 1874 K 
Critical temperature: (no data) K
Superconduction temperature: (no data) K
Enthalpies
Enthalpy of fusion: 10.8 kJ mol-1
Enthalpy of vaporisation: 295 kJ mol-1
Enthalpy of atomisation: 389 kJ mol-1
Thermodynamic data
| State | ΔfH° | ΔfG° | S° | CpH | H°298.15‑H°0 |
|---|---|---|---|---|---|
| Units | kJ mol‑1 | kJ mol‑1 | J K‑1 mol‑1 | J K‑1 mol‑1 | kJ mol‑1 |
| Solid | 0 | 0 | 73.2 | 28.9 | 9.41 |
| Gas | 389 | 350 | 203.5 | 24.6 | 7.5 |
Notes
This table gives a few thermodynamic data. Most values are those given in the NBS technical notes (reference 1) after conversion from the units used within those notes. Values labelled with an asterisk (*) are Committee on Data for Science and Technology (CODATA) agreed values for the thermodynamic properties of key chemical substances (reference 2). These values are published in a number of places including the WWW (reference 3).
References
- R.H. Schumm, D.D. Wagman, S. Bailey, W.H. Evans, and V.B. Parker in National Bureau of Standards (USA) Technical Notes 270-1 to 270-8, 1973.
- J.D. Cox, DD., Wagman, and V.A. Medvedev, CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, USA, 1989.
- http://www.codata.info/resources/databases/key1.html
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