Thermal Properties of Promethium and Tin
Specific Heat
0.18 J/(kg K)
  
33
0.23 J/(kg K)
  
28
Molar Heat Capacity
Not Available
  
27.11 J/mol·K
  
20
Thermal Conductivity
17.90 W/m·K
  
99+
66.80 W/m·K
  
25
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
9.00 µm/(m·K)
  
99+
22.00 µm/(m·K)
  
20
Enthalpy
  
  
Enthalpy of Vaporization
Not Available
  
290.40 kJ/mol
  
32
Enthalpy of Fusion
7.50 kJ/mol
  
99+
7.03 kJ/mol
  
99+
Enthalpy of Atomization
310.00 kJ/mol
  
34
301.30 kJ/mol
  
35
Standard Molar Entropy
Not Available
  
51.20 J/mol.K
  
29