Thermal Properties of Plutonium and Neptunium
Specific Heat
0.13 J/(kg K)
  
39
0.12 J/(kg K)
  
40
Molar Heat Capacity
35.50 J/mol·K
  
3
29.46 J/mol·K
  
8
Thermal Conductivity
6.74 W/m·K
  
99+
6.30 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
46.70 µm/(m·K)
  
6
Not Available
  
Enthalpy
  
  
Enthalpy of Vaporization
344.00 kJ/mol
  
25
Not Available
  
Enthalpy of Fusion
2.82 kJ/mol
  
99+
3.20 kJ/mol
  
99+
Enthalpy of Atomization
360.00 kJ/mol
  
26
Not Available
  
Standard Molar Entropy
Not Available
  
Not Available