Thermal Properties of Promethium and Magnesium
Specific Heat
0.18 J/(kg K)
  
33
1.02 J/(kg K)
  
4
Molar Heat Capacity
Not Available
  
24.87 J/mol·K
  
99+
Thermal Conductivity
17.90 W/m·K
  
99+
156.00 W/m·K
  
8
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
9.00 µm/(m·K)
  
99+
24.80 µm/(m·K)
  
15
Enthalpy
  
  
Enthalpy of Vaporization
Not Available
  
128.70 kJ/mol
  
99+
Enthalpy of Fusion
7.50 kJ/mol
  
99+
8.95 kJ/mol
  
39
Enthalpy of Atomization
310.00 kJ/mol
  
34
148.50 kJ/mol
  
99+
Standard Molar Entropy
Not Available
  
32.70 J/mol.K
  
99+