Thermal Properties of Gadolinium and Promethium
Specific Heat
0.23 J/(kg K)
  
27
0.18 J/(kg K)
  
33
Molar Heat Capacity
37.03 J/mol·K
  
2
Not Available
  
Thermal Conductivity
10.60 W/m·K
  
99+
17.90 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
9.40 µm/(m·K)
  
99+
9.00 µm/(m·K)
  
99+
Enthalpy
  
  
Enthalpy of Vaporization
359.40 kJ/mol
  
21
Not Available
  
Enthalpy of Fusion
10.05 kJ/mol
  
36
7.50 kJ/mol
  
99+
Enthalpy of Atomization
352.00 kJ/mol
  
27
310.00 kJ/mol
  
34
Standard Molar Entropy
68.10 J/mol.K
  
16
Not Available