Thermal Properties of Protactinium and Rubidium
Specific Heat
0.12 J/(kg K)
  
40
0.36 J/(kg K)
  
17
Molar Heat Capacity
Not Available
  
31.06 J/mol·K
  
5
Thermal Conductivity
47.00 W/m·K
  
32
58.20 W/m·K
  
26
Critical Temperature
Not Available
  
Thermal Expansion
9.90 µm/(m·K)
  
40
90.00 µm/(m·K)
  
2
Enthalpy
  
  
Enthalpy of Vaporization
Not Available
  
69.20 kJ/mol
  
99+
Enthalpy of Fusion
12.34 kJ/mol
  
28
2.19 kJ/mol
  
99+
Enthalpy of Atomization
Not Available
  
82.00 kJ/mol
  
99+
Standard Molar Entropy
198.10 J/mol.K
  
1
76.80 J/mol.K
  
5