H
Hydrogen
Z 1 1.008 g/molOther Nonmetal
Phase
Temperature
273.2 K(0.0 °C32.0 °F)
Pressure
101,325 Pa(1 atm1.013 bar760 mmHg)
Density (STP)
0.00008988 g/cm³
Current Phase
Gas
Melting Point
14.0 K (-259.2 °C-434.5 °F)
Boiling Point
20.3 K (-252.9 °C-423.2 °F)
Triple Point
13.8 K (-259.3 °C-434.8 °F)7,041 Pa (0.06949 atm0.07041 bar52.81 mmHg)
Critical Point
33.1 K (-240.0 °C-400.0 °F)1.3e6 Pa (12.79 atm12.96 bar9,724 mmHg)
Heating Curve
Added Heat
0.0kJ/moleV
Current Phase
Solid
Temperature
0.0 K(-273.1 °C-459.7 °F)
Heat of Fusion
0.117 kJ/mol0.00121 eV
Heat of Vaporization
0.904 kJ/mol0.00937 eV
Specific Heat
14.3056 J/(g·K)
Thermal Conductivity
0.1805 W/(m·K)