The chemical reaction for the combustion of hydrogen is O2(g) + 2H2(g) → 2H2O(g).
Green hydrogen is a fuel produced through a chemical process called electrolysis, which uses an electrical current to separate hydrogen from oxygen in water. When burned, hydrogen emits water vapor and heat, and produces no pollutants.
Here are some other facts about hydrogen:
Production
Green hydrogen can be produced using renewable energy sources like wind or solar power. Electrolyzers can be small or large, and can be used for small-scale or large-scale production.
Flammability
Hydrogen has a wide flammability range in normal air conditions, from 4 to 75 vol%. It also requires very little energy to ignite.
Detonation
Confined hydrogen can detonate across a broad concentration spectrum.
Biological production
Microbes like bacteria and microalgae can also produce hydrogen through biological reactions.
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