Thermal Properties of Promethium and Europium
Specific Heat
0.18 J/(kg K)
  
33
0.18 J/(kg K)
  
33
Molar Heat Capacity
Not Available
  
27.66 J/mol·K
  
16
Thermal Conductivity
17.90 W/m·K
  
99+
13.90 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
9.00 µm/(m·K)
  
99+
35.00 µm/(m·K)
  
8
Enthalpy
  
  
Enthalpy of Vaporization
Not Available
  
143.50 kJ/mol
  
99+
Enthalpy of Fusion
7.50 kJ/mol
  
99+
9.21 kJ/mol
  
37
Enthalpy of Atomization
310.00 kJ/mol
  
34
180.00 kJ/mol
  
99+
Standard Molar Entropy
Not Available
  
77.80 J/mol.K
  
4