Thermal Properties of Promethium and Strontium
Specific Heat
0.18 J/(kg K)
  
33
0.30 J/(kg K)
  
18
Molar Heat Capacity
Not Available
  
26.40 J/mol·K
  
28
Thermal Conductivity
17.90 W/m·K
  
99+
35.40 W/m·K
  
37
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
9.00 µm/(m·K)
  
99+
22.50 µm/(m·K)
  
18
Enthalpy
  
  
Enthalpy of Vaporization
Not Available
  
150.00 kJ/mol
  
99+
Enthalpy of Fusion
7.50 kJ/mol
  
99+
9.16 kJ/mol
  
38
Enthalpy of Atomization
310.00 kJ/mol
  
34
163.20 kJ/mol
  
99+
Standard Molar Entropy
Not Available
  
55.00 J/mol.K
  
26