Thermal Properties of Rhenium and Niobium
Thermal Properties
Specific Heat
0.13 J/(kg K)
39
0.26 J/(kg K)
20
Molar Heat Capacity
25.48 J/mol·K
38
24.60 J/mol·K
99+
Thermal Conductivity
48.00 W/m·K
31
53.70 W/m·K
29
Critical Temperature
Not Available
Not Available
Thermal Expansion
6.20 µm/(m·K)
99+
7.30 µm/(m·K)
99+
Enthalpy
Enthalpy of Vaporization
707.10 kJ/mol
3
696.60 kJ/mol
4
Enthalpy of Fusion
33.05 kJ/mol
2
27.20 kJ/mol
6
Enthalpy of Atomization
791.00 kJ/mol
2
745.00 kJ/mol
4
Standard Molar Entropy
36.90 J/mol.K
99+
36.40 J/mol.K
99+
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