Thermal Properties of Plutonium and Promethium
Specific Heat
0.13 J/(kg K)
  
39
0.18 J/(kg K)
  
33
Molar Heat Capacity
35.50 J/mol·K
  
3
Not Available
  
Thermal Conductivity
6.74 W/m·K
  
99+
17.90 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
46.70 µm/(m·K)
  
6
9.00 µm/(m·K)
  
99+
Enthalpy
  
  
Enthalpy of Vaporization
344.00 kJ/mol
  
25
Not Available
  
Enthalpy of Fusion
2.82 kJ/mol
  
99+
7.50 kJ/mol
  
99+
Enthalpy of Atomization
360.00 kJ/mol
  
26
310.00 kJ/mol
  
34
Standard Molar Entropy
Not Available
  
Not Available