Thermal Properties of Uranium and Promethium
Specific Heat
0.12 J/(kg K)
  
40
0.18 J/(kg K)
  
33
Molar Heat Capacity
27.67 J/mol·K
  
15
Not Available
  
Thermal Conductivity
27.50 W/m·K
  
40
17.90 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
13.90 µm/(m·K)
  
27
9.00 µm/(m·K)
  
99+
Enthalpy
  
  
Enthalpy of Vaporization
477.00 kJ/mol
  
13
Not Available
  
Enthalpy of Fusion
15.48 kJ/mol
  
19
7.50 kJ/mol
  
99+
Enthalpy of Atomization
489.50 kJ/mol
  
14
310.00 kJ/mol
  
34
Standard Molar Entropy
50.20 J/mol.K
  
31
Not Available