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Thermodynamic properties by levitation calorimetry III. The enthalpies of fusion and heat capacities for the liquid phases of iron, titanium, and vanadium

Authors
Journal
The Journal of Chemical Thermodynamics
0021-9614
Publisher
Elsevier
Publication Date
Volume
3
Issue
4
Identifiers
DOI: 10.1016/s0021-9614(71)80029-0
Disciplines
  • Physics

Abstract

A levitation calorimeter has been used to determine the thermodynamic properties of liquid titanium, vanadium, and iron over the temperature ranges: 1969 to 2315K, 2205 to 2638 K, and 1804 to 2142 K, respectively. In addition, emissivity values for the liquid metal surfaces have been determined. A summary of the results obtained is presented below. Titanium Vanadium Iron Δ H m / cal mol − 1 3161 ± 120 4136 ± 170 3307 ± 70 Δ S m / cal K − 1 mol − 1 1.63 ± 0.06 1.90 ± 0.08 1.83 ± 0.04 C p / cal K − 1 mol − 1 10.87 ± 0.41 11.65 ± 0.36 10.29 ± 0.29 ( ε l , T m , λ = 0.65 μm ) 0.477 ± 0.027 0.400 ± 0.019 0.378 ± 0.006

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