Entropy 2011, 13(8), 1533-1540; doi:10.3390/e13081533
Commentary

Distinguishability in Entropy Calculations: Chemical Reactions, Conformational and Residual Entropy

Departamento de Química Física y Analítica, Universidad de Oviedo, Julián Clavería 8, 33006, Oviedo, Spain
Received: 15 June 2011; in revised form: 2 August 2011 / Accepted: 20 August 2011 / Published: 23 August 2011
(This article belongs to the Special Issue Residual and Ground State Entropy)
PDF Full-text Download PDF Full-Text [95 KB, Updated Version, uploaded 26 August 2011 11:27 CEST]
The original version is still available [108 KB, uploaded 23 August 2011 11:43 CEST]
Abstract: By analyzing different examples of practical entropy calculations and using concepts such as conformational and residual entropies, I show herein that experimental calorimetric entropies of single molecules can be theoretically reproduced considering chemically identical atoms either as distinguishable or indistinguishable particles. The broadly used correction in entropy calculations due to the symmetry number and particle indistinguishability is not mandatory, as an ad hoc correction, to obtain accurate values of absolute and relative entropies. It is shown that, for any chemical reaction of any kind, considering distinguishability or indistinguishability among identical atoms is irrelevant as long as we act consistently in the calculation of all the required entropy contributions.
Keywords: particle distinguishability; chemical reactions; conformational entropy; residual entropy; Gibbs paradox

Article Statistics

Load and display the download statistics.

Citations to this Article

Cite This Article

MDPI and ACS Style

Suárez, E. Distinguishability in Entropy Calculations: Chemical Reactions, Conformational and Residual Entropy. Entropy 2011, 13, 1533-1540.

AMA Style

Suárez E. Distinguishability in Entropy Calculations: Chemical Reactions, Conformational and Residual Entropy. Entropy. 2011; 13(8):1533-1540.

Chicago/Turabian Style

Suárez, Ernesto. 2011. "Distinguishability in Entropy Calculations: Chemical Reactions, Conformational and Residual Entropy." Entropy 13, no. 8: 1533-1540.

Entropy EISSN 1099-4300 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert