Thermal Properties of Lead and Neptunium
Specific Heat
0.13 J/(kg K)
  
39
0.12 J/(kg K)
  
40
Molar Heat Capacity
26.65 J/mol·K
  
26
29.46 J/mol·K
  
8
Thermal Conductivity
35.30 W/m·K
  
38
6.30 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
28.90 µm/(m·K)
  
13
Not Available
  
Enthalpy
  
  
Enthalpy of Vaporization
179.40 kJ/mol
  
99+
Not Available
  
Enthalpy of Fusion
4.77 kJ/mol
  
99+
3.20 kJ/mol
  
99+
Enthalpy of Atomization
194.60 kJ/mol
  
99+
Not Available
  
Standard Molar Entropy
64.80 J/mol.K
  
17
Not Available