how hot will the temperature have to be for you to die of heat almost instantly?

Answer 1

About 111 F of corporal temperature. Of course during a certain period of time the external temperature can be higher but but no one can survive a temperature of 45°C (113°F) or above for very long.

Critical points are:

* 37°C (98.6°F) - Normal body temperature (which varies between about 36.12-37.5°C (96.8-99.5°F)
* 38°C (100.4°F) - Sweating, feeling very uncomfortable, slightly hungry.
* 39°C (102.2°F) (Pyrexia) - Severe sweating, flushed and very red. Fast heart rate and breathlessness. There may be exhaustion accompanying this. Children and epileptics may be very likely to get convulsions at this point.
* 40°C (104°F) - Fainting, dehydration, weakness, vomiting, headache and dizziness may occur as well as profuse sweating.
* 41°C (105.8°F) - (Medical emergency) - Fainting, vomiting, severe headache, dizziness, confusion, hallucinations, delirium and drowsiness can occur. There may also be palpitations and breathlessness.
* 42°C (107.6°F) - Subject may turn pale or remain flushed and red. They may become comatose, be in severe delirium, vomiting, and convulsions can occur. Blood pressure may be high or low and heart rate will be very fast.
* 43°C (109.4°F) - Normally death, or there may be serious brain damage, continuous convulsions and shock. Cardio-respiratory collapse will occur.
* 44°C (111.2°F) or more - Almost certainly death will occur; however, patients have been known to survive up to 46.5°C (115.7°F).[3]


You have all the info in

http://en.wikipedia.org/wiki/Thermoregulation#Hot

Answer 2

At a guess, I would say several thousand degrees. You really do need to define "almost instantly." Is that five seconds? One second? 1/10th of a second?

You'd probably survive for a few seconds at 2000 degrees F.

Edit: it would also depend on what sort of heat. You would die far more quickly falling into a hot liquid (say lava) than you would being exposed to similar air temperatures.

Answer 3

Well, human flesh melts at around 100 degrees Celsius so to die instantly, I would think somewhere around 2.5 times that would do it. This would allow the heat to devour you very fast and melt you flesh quickly. This would kill you very quickly.

Answer 4

I have Sean it 120 in the Mojave desert with no life in danger as long as u have water.

Answer 5

Your blood would boil whilst you froze at the same time.....a horrible way to die.

Answer 6

in the 1,000 or over.