Sackur–Tetrode equation
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The Sackur–Tetrode equation provides the entropy (S) of an ideal gas (classical). It is given by
![S=N k_B \ln \left[ \left( \frac{2 \pi m k_B T}{h^2} \right)^{3/2} \frac{k_BT}{p} \exp(5/2)\right]](/SklogWiki/images/math/5/9/2/592d363caf7eaf588b280b763f4ff1f4.png)
where kB is the Boltzmann constant, T is the temperature, p is the pressure, m is the mass of the gas particle, N is the numer of particles and h is the Planck constant.
[edit] References
- O. Sackur "Die universelle Bedeutung des sog. elementaren Wirkungsquantums", Annalen der Physik 40 pp. 67-86 (1913)
- H. Tetrode "Die chemische Konstante der Gase und das elementare Wirkungsquantum", Annalen der Physik 38 pp. 434-442 (1912)
- H. Tetrode "Berichtigung zu meiner Arbeit: 'Die chemische Konstante der Gase und das elementare Wirkungsquantum'", Annalen der Physik 39 pp. 255-256 (1913)
