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In: Chemistry
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Quite a bit of the skin is composed of liquids that exposed to a extremely high temperature obviously are gonna evaporate.
Whereas the remaining skin would dry up until becoming dust or burn down becoming powder
Nature is made from carbon, that’s why our gas cars run on something left over from plants and animals from ages ago. Thus if you throw a person in a volcano or in a blast furnace, it will burn just like a log of wood would, just letting off water vapor as well as humans are water for more than half or their weight.
It depends on the pressure and the temperature. Every substance has a phase diagram which describes what state of matter it will be in at a given pressure and temperature.
Since there are many different substances in human tissue, as someone else pointed out, some would melt and others would vaporize. It’s possible for anything to go from a solid to a gas, a process called sublimation, but it all depends on the pressure.
Bottom line is, at a high enough pressure, everything would melt, and at a low enough pressure, everything would vaporize.
Honestly, it would be more likely for something to catch on fire and the whole thing to burn up, considering humans are carbon based, and we have so much oxygen within is.
99 percent of the human body is made of hydrogen, oxygen, carbon, and nitrogen. Most of the hydrogen and oxygen is bonded as water.
Assuming a sealed container under very high temperature and no additional oxygen supply, you’d break the bonds of all the organic molecules and the carbon would precipitate as soot. Water would convert to steam and recondense when it cooled off.
When your experiment is done you’d have a sooty, black broth and some nitrogen.
This experiment has been done before. We call it a crematorium. The human body is mostly water. the rest will turn to ash
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