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If a substance at Absolute Hot and a substance at Absolute Zero collided, what would happen to the resulting mixture??

Assume this was done on Earth in a sort of collision facility.

I'm working on story about two scientists who are researching temperatures, and how they would affect the world. In an advanced society, I didn't know what the impact of the collision would mean (and have since found out Absolute Hot on Earth is a REALLY bad idea). It would determine how hot my "mutants" will be, and the sort of cancelling out I would need to make them equal (one is evil, the other is good).

Note: I have no idea what to tag this as.

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3  
Do not try this at home. We're what you call experts. – cobaltduck Feb 19 at 21:39
    
Peripherally relevant en.m.wikipedia.org/wiki/Negative_temperature – Sobrique Feb 19 at 22:54
    
There's no puzzle there. Whichever temperature you meant as the hot one (the link gave two), you would end up with half that. More generally, the substance would have different heat capacities at different phases. Just substitute "value xx degrees" for Absolute Hot and you'll see it's not a puzzle. – JDługosz Feb 20 at 7:40
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@Toadfish Do not vote to close based on that reason. – Samuel Feb 20 at 16:57
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@Toadfish It's perfectly appropriate to vote to close as off-topic if in your informed opinion the question is off-topic here. You shouldn't vote to close just because a question is also on-topic elsewhere. Note the difference between the two. – Michael Kjörling Feb 24 at 9:58
up vote 18 down vote accepted

It would be so close to absolute hot that you probably couldn't tell the difference.

The two concepts are not really on opposite ends of a spectrum from what we consider "normal" (~300 Kelvin). In the cold direction, there is 300 Kelvin, in the hot direction there is 1.416785(71)×1032 Kelvin.

If you mix two equal amounts of substances at the temperatures it would all be in the 1032 Kelvin range still.

Not all that impressive, unfortunately. Note that doing this on Earth, or having anything that is absolute hot anywhere near Earth, would be the end of the experiment and Earth.

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@RobWatts From what we consider "normal" is 300 Kelvin to 0. The point is it's the same order of magnitude. – Samuel Feb 19 at 21:15
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@RobWatts, even splitting it in half would only bring that 32 exponent down to a 31. – The Anathema Feb 19 at 21:17
    
@RobWatts Yep. Just making it clear that it's not like we're in the middle of two opposite sides of the temperature scale. – Samuel Feb 19 at 21:19
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@Samuel TIL humans are friggin' cold. – Anoplexian Feb 19 at 21:20
    
@XandarTheZenon That's the definition, yep. Read the other comments first if you're still confused. – Samuel Feb 20 at 2:14

Everything in the region would be a goner.

For one, the absolute zero would do nothing to impact the absolute hot, since absolute hot is far beyond 0 on the positive side of the number line.

It would do a minuscule amount to the hot volume, and as a result (nevermind having that heat around to begin with) could form a hypothetical object known as a kugelblitz, spacetime warped into a black hole from the sheer amount of energy, and that's without consideration for the fact that the heat would incinerate everything in that region of space.

You can say goodbye to the Earth and everything around it. It's like throwing an ice cube into a volcano except the volcano is the Big Bang.

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protected by Michael Kjörling Feb 24 at 10:00

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