Just vibin
Posted Dec 21, 2019, 7:59 PM UTC
2.1K33
So every atom we know exists
34
Yes and no, temperature is an aggregate property across multiple interacting states. If you isolated a single helium atom it would likely be at ground state.
2
Interesting, please do tell more
(Highschooler here)
1
Temperature is not an intrinsic property, it is an emergent effect of the chaotic motion of atoms. As such if you only consider a single atom things start to become interesting.
Because energy is quantized the energy of electrons only have certain levels. At 25C the vast majority of electrons are in their lowest energy state.
2
So why did you choose helium specifically
1
woo yea
5
They are also grooving at 0K. Yay for zero point oscillations.
3
Oh yeah woo yeah
2
What does this mean in european?
-35
Kelvin isn’t European or American, 0 is absolute 0
39
Kelvin is technically European (in the sense of this joke) as it is the official base unit for temperature in SI. Celcius is a derived unit of Kelvin to make normal temperatures easier to work with.
10
True, but for all absolute science (including Highschool and colleges in America) we were taught to find kelvin. Granted, when using common/store bought scales we converted Celsius to kelvin, but our answers were written in kelvin
6
Well basically, you read it exactly the way it is, and then that’s it.
17
To get K add 278 to C.
0†
273*
9
273.15*
10
Below as well
Wait what
So temperature is basically defined as T=dH/dS. If adding more energy into a system decreases the entropy you get negative temperature. A system in this state is hotter than any positive temperature and has some other interesting properties.
Look into the Ising spin system.
[deleted]
ELI5?
Not really an Eli5 but for a general introduction