Thermal Properties of Lanthanum and Protactinium
Specific Heat
0.19 J/(kg K)
  
32
0.12 J/(kg K)
  
40
Molar Heat Capacity
27.11 J/mol·K
  
21
Not Available
  
Thermal Conductivity
13.40 W/m·K
  
99+
47.00 W/m·K
  
32
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
12.10 µm/(m·K)
  
32
9.90 µm/(m·K)
  
40
Enthalpy
  
  
Enthalpy of Vaporization
399.60 kJ/mol
  
17
Not Available
  
Enthalpy of Fusion
6.20 kJ/mol
  
99+
12.34 kJ/mol
  
28
Enthalpy of Atomization
431.00 kJ/mol
  
16
Not Available
  
Standard Molar Entropy
56.90 J/mol.K
  
23
198.10 J/mol.K
  
1