Now with the Boltzmann constant, the mass ... (That would be n in the ideal gas law.) Using Avogadro's number, we get 2.4 x 10 22 particles. You can't count that high. No one can.

For the determination of the Boltzmann constant, which is required for the redefinition of the kelvin, many research groups are using acoustic gas thermometry which has also furnished the most ...