Thermal Properties of Neptunium and Americium
Specific Heat
0.12 J/(kg K)
  
40
0.11 J/(kg K)
  
99+
Molar Heat Capacity
29.46 J/mol·K
  
8
62.70 J/mol·K
  
1
Thermal Conductivity
6.30 W/m·K
  
99+
10.00 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
Not Available
  
Not Available
  
Enthalpy
  
  
Enthalpy of Fusion
3.20 kJ/mol
  
99+
14.39 kJ/mol
  
24
Enthalpy of Atomization
Not Available
  
268.00 kJ/mol
  
40
Standard Molar Entropy
Not Available
  
Not Available