Question

The total kinetic energy of a subsance's atoms is

Answer 1

I am not sure if this is what you are looking for but the total kinetic energy of a substance atoms is the atomic number multiplied by the number of electrons divided by 3.

Answer 2

The above reply is not correct.

In classical physics, the answer is
\[\frac{ 3 }{ 2 }Nk _{B}T\]
where N is the total number of atoms present, kB is Boltzmann's constant and T is the absolute temperature of the atoms.

Answer 3

Ah...thank you for your correction @ProfBrainstorm. I clearly had no idea what I was talking about XD