Question about Jupiter atmosphere

  • Context: Undergrad 
  • Thread starter Thread starter fluidistic
  • Start date Start date
  • Tags Tags
    Atmosphere Jupiter
Click For Summary

Discussion Overview

The discussion revolves around the composition of Jupiter's atmosphere, particularly the presence of hydrogen (H2) and its potential for explosive reactions. Participants explore the conditions necessary for combustion and the likelihood of such reactions occurring in gas giants or other planetary bodies.

Discussion Character

  • Exploratory
  • Debate/contested

Main Points Raised

  • One participant questions why Jupiter's atmosphere, which contains hydrogen, does not explode, speculating that the concentration of gas may be too low for a fire reaction.
  • Another participant clarifies that hydrogen requires oxygen (O2) to explode, implying that the absence of sufficient oxygen in Jupiter's atmosphere prevents combustion.
  • A participant raises the possibility of finding a planet with a hydrogen and oxygen atmosphere that could interact violently, suggesting that such conditions might not exist in the Solar System due to Jupiter's ability to retain hydrogen.
  • It is noted that more than 75% of the universe's mass is hydrogen, while oxygen constitutes only about 1%, making it unlikely for gas giants to have the right mixture for combustion.
  • One participant speculates about the potential for explosions on planets with liquid or ice hydrogen and oxygen, suggesting that extreme events could lead to violent reactions, although they consider this scenario very unlikely.
  • A later reply asserts that a hydrogen/oxygen mixture would not be stable and would likely result in an explosion if formed, indicating that there is no equilibrium similar to that found in stars.

Areas of Agreement / Disagreement

Participants generally agree that hydrogen requires oxygen for combustion and that the conditions for explosive reactions are unlikely to exist in gas giants like Jupiter. However, there are differing views on the potential for such reactions on other planets and the stability of hydrogen/oxygen mixtures.

Contextual Notes

Participants discuss the implications of elemental composition in the universe and the specific conditions required for combustion, highlighting the limitations of current understanding regarding planetary atmospheres.

fluidistic
Gold Member
Messages
3,932
Reaction score
283
I know it's not a bright question, but I'd like to know the answer as well. I've read that the high atmosphere of Jupiter contains molecules of Hydrogen (H_2). It is well known that (under Earth atmosphere at least), this gas is highly explosive. I just wonder why the atmosphere of Jupiter doesn't explode at least partially. I'm guessing that the concentration of gas on the atmosphere is just way too low to start a fire reaction, but it's only a guess. If it appears to be true, I'd like to know the concentration required to start a fire reaction between Hydrogen molecules. (I know it produces water...in case I'm not specific enough of the gas I'm talking about).
 
Astronomy news on Phys.org
No, H2 explosion needs O2 as well
 
Oh you're right... that's why it produces water. Anyway, isn't it possible to find a planet with an atmosphere mixed with hydrogen and oxygen in such quantities that it can interact violently? I don't think it might occur in the Solar System since Jupiter is just heavy enough to retain the hydrogen in its atmosphere... Maybe big explosions occurs in another planets and we might see them then.
 
More than 75% of the mass of the universe is hydrogen, oxygen only 1%, so big gas planets will be unlikely to have the right mix to make combustion possible.
 
More than 75% of the mass of the universe is hydrogen, oxygen only 1%, so big gas planets will be unlikely to have the right mix to make combustion possible.
Too bad... It would also be much less brighter than a little star, so there is no hope to observe it.
I believe planets don't fit the global universe statistics of component elements though.
Now I'm thinking about planets that contains liquid (or ice) H_2 and 0_2. If there is a storm or a cataclysm (say, for example a big cliff falling into the liquefied gases), it would be possible to engender a terrible explosion, but yes, very unlikely to happen.
Thank you both for the clarification. I'm done with this question.
 
Well, such a thing wouldn't be stable anyway. A hydrogen/oxygen mixture is explosive, so a giant ball of it would simplly explode and then be gone. There is no equilibrium to be had like in a star.
 

Similar threads

  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 24 ·
Replies
24
Views
4K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 40 ·
2
Replies
40
Views
7K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 18 ·
Replies
18
Views
3K