Why is absolute zero important?
It is the point at which particle motion stops for monatomic ideal gases. However, molecules will still vibrate.
All temperatures above absolute zero will cause particles in any material to move/vibrate slightly, as temperature gives particles Kinetic energy, according to the equipartition theorem for monatomic ideal gases:
#k_B#= Boltzmann's constant = #1.38065 times 10^-23 J//K#
#T#= absolute temperature (Kelvin)
At absolute zero,
Absolute zero is also the foundation for the Kelvin scale, as