Editing Helmholtz energy function
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[[Hermann Ludwig Ferdinand von Helmholtz]] | |||
Definition of | Definition of '''A''' (for ''arbeit''): | ||
:<math>A | :<math>\left.A\right.=U-TS</math> | ||
where ''U'' is the [[internal energy]], ''T'' is the [[temperature]] and ''S'' is the [[Entropy|entropy]]. | where ''U'' is the [[internal energy]], ''T'' is the [[temperature]] and ''S'' is the [[Entropy|entropy]]. | ||
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where <math>k_B</math> is the [[Boltzmann constant]], ''T'' is the [[temperature]], and <math>Q_{NVT}</math> is the [[Canonical ensemble | canonical ensemble partition function]]. | where <math>k_B</math> is the [[Boltzmann constant]], ''T'' is the [[temperature]], and <math>Q_{NVT}</math> is the [[Canonical ensemble | canonical ensemble partition function]]. | ||
==See also== | ==See also== | ||
*[[Canonical ensemble]] | *[[Canonical ensemble]] | ||
*[[Grand canonical ensemble]] | *[[Grand canonical ensemble]] | ||
[[Category: Classical thermodynamics]] | [[Category: Classical thermodynamics]] |