Why Do Hydrogen and Oxygen Explode at High Temperatures

Elevated temperatures bring hydrogen to its ignition threshold, leading to its combustion: 2H2 + O2 + an ignition source = 2H2O.

Combustible gases explode upon achieving specific concentrations in air or oxygen, a range defined as the explosive limit. For hydrogen, this limit spans from 4% to 74.2% in terms of volume ratio.