Lmao I was kind of making a joke there, it’s an absolute scale so a negative number can’t actually exist, i.e. |-10| = 10
Additionally, temperatures expressed as negative Kelvin aren’t actually negative Kelvin in reality (“reality” meaning the actual physical existence in our material world) because, as you pointed out, the material would actually be more temperate. Negative Kelvin is useful to represent systems where adding energy decreases the entropy of the system, rather than the standard of increasing entropy, but to relate it to the actual heat or energy of the material gets murky.
I thought negative Kelvin were sometimes used to describe very very high temperatures but I could be wrong.
Thanks for the downvotes y’all, enjoy being wrong:
" Negative absolute temperatures (or negative Kelvin temperatures) are hotter than all positive temperatures - even hotter than infinite temperature."
Lmao I was kind of making a joke there, it’s an absolute scale so a negative number can’t actually exist, i.e. |-10| = 10
Additionally, temperatures expressed as negative Kelvin aren’t actually negative Kelvin in reality (“reality” meaning the actual physical existence in our material world) because, as you pointed out, the material would actually be more temperate. Negative Kelvin is useful to represent systems where adding energy decreases the entropy of the system, rather than the standard of increasing entropy, but to relate it to the actual heat or energy of the material gets murky.