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317

I've noticed that people make the 'surface of the sun' temperature comparison a lot (lemmy.dbzer0.com)

submitted 7 months ago by [email protected] to c/[email protected]

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[–] [email protected] 25 points 7 months ago (4 children)

5500C? i thought it's not that much, chemistry can get you there

apparently not

thermite tops at some 2000C-something, and in any case can't work above boiling point of aluminum (2470C)

only in few cases of adiabatic flame temperatures reach above 4000C, and all in oxygen. highest listed in wikipedia is oxygen/dicyanoacetylene at 4990C. maybe some wacky highly fluorinated oxidizer will allow for even higher temperatures. adiabatic detonation temperatures also top out at some 4500C even for the most energetic explosives

so really only practical way to get to 5500C is through use of electric arc

[–] [email protected] 8 points 7 months ago (1 children)

adiabatic detonation temperatures also top out at some 4500C even for the most energetic explosives

What if we pre-heat the room to 3000, then very quickly introduce the explosives and run away before detonation?

[–] [email protected] 8 points 7 months ago

if there's no room left after measurement, did it really happen?

[–] [email protected] 6 points 7 months ago (1 children)

5 trillion K is a lot more than 5500 C.

[–] Noodle07 2 points 7 months ago (1 children)

He's talking about the surface of the sun

[–] [email protected] 2 points 7 months ago

Oh, in the picture. I haven't realised it's a part of the parent comment, only read the text.

Makes way more sense then.

[–] [email protected] 3 points 7 months ago (1 children)

Surely a laser would be way more practical

[–] [email protected] 7 points 7 months ago

depends on what do you want to heat up. hint: at 5500C you need to handle plasma anyway

[–] [email protected] 2 points 7 months ago* (last edited 7 months ago)

You're only off by about 9 zeros.