Avogadro Constant - General Role in Science

General Role in Science

Avogadro's constant is a scaling factor between macroscopic and microscopic (atomic scale) observations of nature. As such, it provides the relation between other physical constants and properties. For example, it establishes a relationship between the gas constant R and the Boltzmann constant kB,

and the Faraday constant F and the elementary charge e,

The Avogadro constant also enters into the definition of the unified atomic mass unit, u,

where Mu is the molar mass constant.

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