Thermal Properties of Promethium and Chromium
Specific Heat
0.18 J/(kg K)
  
33
0.45 J/(kg K)
  
12
Molar Heat Capacity
Not Available
  
23.35 J/mol·K
  
99+
Thermal Conductivity
17.90 W/m·K
  
99+
93.90 W/m·K
  
17
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
9.00 µm/(m·K)
  
99+
4.90 µm/(m·K)
  
99+
Enthalpy
  
  
Enthalpy of Vaporization
Not Available
  
348.80 kJ/mol
  
24
Enthalpy of Fusion
7.50 kJ/mol
  
99+
15.31 kJ/mol
  
20
Enthalpy of Atomization
310.00 kJ/mol
  
34
397.50 kJ/mol
  
21
Standard Molar Entropy
Not Available
  
23.80 J/mol.K
  
99+