Hydrogen Atom - Production and Reactivity

Production and Reactivity

The H–H bond is one of the strongest bonds in chemistry, with a bond dissociation enthalpy of 435.88 kJ/mol at 298 K. As a consequence of this strong bond, H₂ dissociates to only a minor extent until higher temperatures. At 3000K, the degree of dissociation is only 7.85%:

H₂ ⇌ 2 H

Hydrogen atoms are so reactive that they combine with almost all elements.