Thermal Properties of Thulium and Promethium
Specific Heat
0.16 J/(kg K)
  
35
0.18 J/(kg K)
  
33
Molar Heat Capacity
27.03 J/mol·K
  
22
Not Available
  
Thermal Conductivity
16.90 W/m·K
  
99+
17.90 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
13.30 µm/(m·K)
  
29
9.00 µm/(m·K)
  
99+
Enthalpy
  
  
Enthalpy of Vaporization
191.00 kJ/mol
  
99+
Not Available
  
Enthalpy of Fusion
16.80 kJ/mol
  
17
7.50 kJ/mol
  
99+
Enthalpy of Atomization
247.00 kJ/mol
  
99+
310.00 kJ/mol
  
34
Standard Molar Entropy
74.00 J/mol.K
  
9
Not Available