Other Reactions That Place When Hydrogen and Oxygen are combined

AI Thread Summary
The discussion centers on the chemical reactions that occur when hydrogen and oxygen are combined in a planetary atmosphere, particularly in relation to a Neptune-sized exoplanet. The primary stable product of this reaction is water, with hydrogen peroxide being a possible but unstable byproduct. The introduction of methane could lead to the formation of water and carbon dioxide, which could theoretically support plant life. However, the conversation highlights confusion regarding atmospheric composition, as the total volume must equal 100%. Ultimately, the discussion was deemed off-topic and was locked due to a lack of scientific basis in some questions raised.
Dryson
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After reading this article, Water Vapor Found on Neptune-size Alien Planet - http://www.space.com/27251-water-found-neptune-size-exoplanet.html, I was wondering what other reactions would occur within the atmosphere of the planet as a result of the combination of oxygen at 25% to the 90% volume of hydrogen that is already present on the planet?
 
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The only thermodynamically stable product of the reaction between hydrogen and oxygen is water. In theory it is also possible to produce hydrogen peroxide, but it is not stable and decomposes into water and oxygen.

Whether other products are possible depends on the presence of other substances (for example methane can yield water and carbon dioxide).
 
Borek said:
The only thermodynamically stable product of the reaction between hydrogen and oxygen is water. In theory it is also possible to produce hydrogen peroxide, but it is not stable and decomposes into water and oxygen.

Whether other products are possible depends on the presence of other substances (for example methane can yield water and carbon dioxide).

If methane is introduced into the situation then water and carbon dioxide would be created thus allowing plant life to consume the carbon dioxide and then produce oxygen that would then combine with the hydrogen to create even more water.
 
Perhaps you should define your question more precisely - original post didn't say anything about plant life. If you mean a planet with plant life and with plant produced oxygen, you can't expect hydrogen in the atmosphere.
 
The planet would be void of plant life at first and then transplanted to the planet after the combination of methane and oxygen took place.
 
Dryson said:
The planet would be void of plant life at first and then transplanted to the planet

No idea how you transplant planet to planet. Can we stick to chemistry and not to fairy tales?
 
Dryson said:
After reading this article, Water Vapor Found on Neptune-size Alien Planet - http://www.space.com/27251-water-found-neptune-size-exoplanet.html, I was wondering what other reactions would occur within the atmosphere of the planet as a result of the combination of oxygen at 25% to the 90% volume of hydrogen that is already present on the planet?

If the planet's atmosphere is composed of hydrogen at 90% by volume, how can you have oxygen at 25% by volume? The whole atmosphere has got to add up to 100%.
 
SteamKing said:
If the planet's atmosphere is composed of hydrogen at 90% by volume, how can you have oxygen at 25% by volume? The whole atmosphere has got to add up to 100%.

As the reactions between hydrogen, oxygen and methane cause changes to occur where the gas becomes a liquid the volume of gas will decrease well below the 100% level that you are describing.

Another question is if let's say 500% oxygen and methane was combined with the 90% hydrogen could the increase in pressure possibly cause thunder cells to form?
 
Sorry, but there is no science behind your questions, just juggling of buzzwords. That's not what we do at the forum.

Topic locked. Please read the forum rules.
 
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