Thermal Properties of Promethium and Erbium
Specific Heat
0.18 J/(kg K)
  
33
0.17 J/(kg K)
  
34
Molar Heat Capacity
Not Available
  
28.12 J/mol·K
  
11
Thermal Conductivity
17.90 W/m·K
  
99+
14.50 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
9.00 µm/(m·K)
  
99+
12.20 µm/(m·K)
  
31
Enthalpy
  
  
Enthalpy of Vaporization
Not Available
  
261.00 kJ/mol
  
35
Enthalpy of Fusion
7.50 kJ/mol
  
99+
17.20 kJ/mol
  
15
Enthalpy of Atomization
310.00 kJ/mol
  
34
314.00 kJ/mol
  
33
Standard Molar Entropy
Not Available
  
73.10 J/mol.K
  
11