Thermal Properties of Promethium and Rhodium
Specific Heat
0.18 J/(kg K)
  
33
0.24 J/(kg K)
  
22
Molar Heat Capacity
Not Available
  
24.98 J/mol·K
  
99+
Thermal Conductivity
17.90 W/m·K
  
99+
150.00 W/m·K
  
9
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
9.00 µm/(m·K)
  
99+
8.20 µm/(m·K)
  
99+
Enthalpy
  
  
Enthalpy of Vaporization
Not Available
  
495.40 kJ/mol
  
12
Enthalpy of Fusion
7.50 kJ/mol
  
99+
21.76 kJ/mol
  
10
Enthalpy of Atomization
310.00 kJ/mol
  
34
556.50 kJ/mol
  
12
Standard Molar Entropy
Not Available
  
31.50 J/mol.K
  
99+