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KT (energy)

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Additional recommended knowledge

kT (energy) is the product of the Boltzmann constant, k, and the temperature, T. This product is used in physics as a scaling factor for energy values in molecular-scale systems (sometimes it is used as a pseudo-unit of energy), as the rates and frequencies of many processes and phenomena depend not on their energy alone, but on the ratio of that energy and kT, that is, on E / kT (see Arrhenius equation).

In macroscopic scale systems, with large numbers of molecules, RT value is commonly used; its SI units are joules per mole (J/mol):

RT = kT ×(NA)

At room temperature 25 °C (77 °F, 298 K) one kT is equivalent to 4.11x10-21 J , 9.83x10-22 cal or 26 meV.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "KT_(energy)". A list of authors is available in Wikipedia.
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