Thermal Properties of Promethium and Silver
Specific Heat
0.18 J/(kg K)
  
33
0.24 J/(kg K)
  
25
Molar Heat Capacity
Not Available
  
25.35 J/mol·K
  
99+
Thermal Conductivity
17.90 W/m·K
  
99+
429.00 W/m·K
  
1
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
9.00 µm/(m·K)
  
99+
18.90 µm/(m·K)
  
23
Enthalpy
  
  
Enthalpy of Vaporization
Not Available
  
255.10 kJ/mol
  
37
Enthalpy of Fusion
7.50 kJ/mol
  
99+
11.30 kJ/mol
  
31
Enthalpy of Atomization
310.00 kJ/mol
  
34
284.50 kJ/mol
  
37
Standard Molar Entropy
Not Available
  
42.60 J/mol.K
  
35