In absence of air, Hydrogen reaction

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SUMMARY

The reaction of hydrogen (H2) and oxygen (O2) in a vacuum tube does not produce water (H2O) or hydrogen peroxide (H2O2) without a catalyst. In the Kanzius experiment, hydrogen and oxygen are generated together but remain unreacted due to the absence of a catalyst. A catalyst, specifically an Au-Pd mix suspended in Al2O3, is required to form hydrogen peroxide from hydrogen and oxygen. Additionally, hydrogen peroxide can decompose exothermically into water and oxygen.

PREREQUISITES
  • Understanding of chemical reactions involving hydrogen and oxygen
  • Knowledge of catalysts, specifically Au-Pd and Al2O3
  • Familiarity with the Kanzius experiment and its implications
  • Basic principles of exothermic reactions and decomposition
NEXT STEPS
  • Research the Kanzius experiment and its findings on hydrogen and oxygen reactions
  • Study the role of catalysts in chemical reactions, focusing on Au-Pd and Al2O3
  • Learn about the formation and decomposition of hydrogen peroxide (H2O2)
  • Explore the thermodynamics of exothermic reactions in chemical processes
USEFUL FOR

Chemists, chemical engineers, and students interested in reaction mechanisms and catalysis, particularly those studying hydrogen and oxygen interactions.

Butterfly_grl
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What is the reaction of hydrogen and oxygen say in a vacant tube in absence of air, does it give Water, or hydrogen peroxide? and the amount of hydrogen and oxygen is the same of water ratio 2:1

In the Kanzius experiment, the hydrogen and oxygen are produced (together) and not ionized, so the hydrogen and oxygen are causing fire because of their reaction with air? and if they are the same ratio of water, why don't they give water back?

and in the same experiment, if the hydrogen and oxygen are also produced, in a vacant tube, would they produce a spark?

Thank you.​
 
Chemistry news on Phys.org
H2 and O2 when burnt forms water.

Peroxide needs a catalyst to form from O2 and H2, the catalyst is an Au-Pd mix suspended in Al2O3. Peroxide can also be formed using this method http://en.wikipedia.org/wiki/Hydrogen_peroxide.

H2O2 will breakdown exothermically to make water and oxygen.Need to read up on Kanzius' experiment.
 
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