Thermal Properties of Protactinium and Lead
Specific Heat
0.12 J/(kg K)
  
40
0.13 J/(kg K)
  
39
Molar Heat Capacity
Not Available
  
26.65 J/mol·K
  
26
Thermal Conductivity
47.00 W/m·K
  
32
35.30 W/m·K
  
38
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
9.90 µm/(m·K)
  
40
28.90 µm/(m·K)
  
13
Enthalpy
  
  
Enthalpy of Vaporization
Not Available
  
179.40 kJ/mol
  
99+
Enthalpy of Fusion
12.34 kJ/mol
  
28
4.77 kJ/mol
  
99+
Enthalpy of Atomization
Not Available
  
194.60 kJ/mol
  
99+
Standard Molar Entropy
198.10 J/mol.K
  
1
64.80 J/mol.K
  
17