Questions tagged [combustion]
152 questions
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Fire: Why is Carbon combustible and Why is Oxygen needed?
This question is about the requisites of fire and combustion. My physics learning is only high school level.
In a nutshell, why are certain elements more susceptible to combustion while others are not, from a quantum level?
In other words, do the…
SORA
- 51
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Why does hot oil inflame when windows are opened?
A Japanese Youtuber posted a video on her survival from burns on one side of her face. She said left oil heating on the stove and noticed it producing lots of black smoke- hit the smoke temperature point of the oil. She turned off the stove and…
user2617804
- 143
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Why can't you blow out a smouldering reaction?
It's possible to blow out a candle flame so how come once it's blown out, if the wick is still smouldering, blowing on it just makes it glow brighter instead of stopping the smouldering reaction.
Timothy
- 1,648
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Why do things catch fire from flame more easily than from a hot object?
I was just reading some chemistry article and among the list of materials there was:
hotplate or other flameless heat source (to avoid igniting the ethanol)
This made me wonder. It's basically general knowledge that things ignite more easily…
Tomáš Zato
- 3,088
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4 answers
Can paper burn without oxygen or air?
If you put a paper inside an oven vacuum packed and go beyond 250ºC, will it burn? There's no oxidizer. If not, what will happen?
sospedra
- 121
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Oil Lamp Dynamics
Here is a photo of an oil lamp I am making.
I am facing a few problems.first how its made.
Its a glass bulb with a custom fit plug made out of aluminium.The bulb balances by way of a neodymium magnet inside the bulb and is placed on an iron…
Rupin
- 101
0
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Why combustion need oxygen?
Why actually oxygen is needed for combustion?, can combustion take place with other element? Or oxygen is the only gas involving in this chemical reaction?
SURAJ SINGH
- 11
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What is the purpose of a combustion chamber in a jet engine?
I've learned that in combustion chamber fuel and air are mixed and burned but I dont understand the outcome. Ive heard that after combustion it is still very hot and I also seen that you loss heat as a result. So can someone clear this up for me so…
Gary Zenger
- 185
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Would a homogeneous stoichiometric fuel/air mixture ignite?
I'm not sure if I'm reading the details on flammability limits and air/fuel ratios correctly, but it seems to me that it wouldn't ignite. For gasoline, the stoichiometric air/fuel (mass air/mass fuel) ratio is 14.7. The lower flammability limit is…
Esteban
- 284
-5
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Would blowing someone else's candle out make mine shine brighter?
Is the claim in this sign correct? Would a candle shine slightly brighter with slightly more oxygen in the room?
And what do you mean "The candles aren't literal."?
billpg
- 826