Thermal Properties of Americium and Promethium
Specific Heat
0.11 J/(kg K)
  
99+
0.18 J/(kg K)
  
33
Molar Heat Capacity
62.70 J/mol·K
  
1
Not Available
  
Thermal Conductivity
10.00 W/m·K
  
99+
17.90 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
Not Available
  
9.00 µm/(m·K)
  
99+
Enthalpy
  
  
Enthalpy of Fusion
14.39 kJ/mol
  
24
7.50 kJ/mol
  
99+
Enthalpy of Atomization
268.00 kJ/mol
  
40
310.00 kJ/mol
  
34
Standard Molar Entropy
Not Available
  
Not Available