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Boltzmann Constant

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Key Stage 5

Meaning

The Boltzmann constant is the molar gas constant divided by the Avogadro constant.

About the Boltzmann Constant

Denoted as ๐‘˜ or ๐‘˜=1.38ร—10โˆ’23 k=1.38ร—10โˆ’23 J/K. Relates the average kinetic energy of particles in a gas with the temperature. Fundamental in the statistical description of physical systems.

Examples

Used in the ideal gas law: ๐‘ƒ ๐‘‰ = ๐‘ ๐‘˜ ๐‘‡ PV=NkT. Important in the study of thermodynamics and statistical mechanics.