Thermal Properties of Protactinium and Zirconium
Specific Heat
0.12 J/(kg K)
  
40
0.27 J/(kg K)
  
19
Molar Heat Capacity
Not Available
  
25.36 J/mol·K
  
99+
Thermal Conductivity
47.00 W/m·K
  
32
22.60 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
9.90 µm/(m·K)
  
40
5.70 µm/(m·K)
  
99+
Enthalpy
  
  
Enthalpy of Vaporization
Not Available
  
581.60 kJ/mol
  
9
Enthalpy of Fusion
12.34 kJ/mol
  
28
20.90 kJ/mol
  
11
Enthalpy of Atomization
Not Available
  
598.00 kJ/mol
  
10
Standard Molar Entropy
198.10 J/mol.K
  
1
39.00 J/mol.K
  
39