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Boltzmanns constant : ウィキペディア英語版 | Boltzmann constant
The Boltzmann constant (''k''B or ''k''), named after Ludwig Boltzmann, is a physical constant relating energy at the individual particle level with temperature. It is the gas constant ''R'' divided by the Avogadro constant ''N''A: : The Boltzmann constant has the dimension energy divided by temperature, the same as entropy. The accepted value in SI units is . ==Bridge from macroscopic to microscopic physics== Boltzmann's constant, ''k'', is a bridge between macroscopic and microscopic physics. Macroscopically, the moles) and absolute temperature ''T'': : where ''R'' is the gas constant (valf particles in one mole (Avogadro's number).
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