On the limitations of total entropy criterion

Li Guo; Zhiqiang Zhou; Qiang Liu

doi:10.1016/j.tsep.2019.100380

On the limitations of total entropy criterion

Li Guo
, Zhiqiang Zhou^*
, Qiang Liu

^*Corresponding author for this work

College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University
University of Bristol

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

In interpreting and teaching of the laws of thermodynamics, the system and its immediate surroundings are usually combined to constitute a composite isolated system to use the principle of entropy increase for predicting the spontaneity of a process, and even of a process in the original system, which is called total entropy criterion. This paper discusses the limitations of the “total entropy criterion” by giving real examples and theoretical derivation, and points out that it is suspected of “changing the object of study”, “giving an irrelevant answer”, and a regression from the principle of entropy increase.

Original language	English
Article number	100380
Journal	Thermal Science and Engineering Progress
Volume	15
DOIs	https://doi.org/10.1016/j.tsep.2019.100380
State	Published - 1 Mar 2020
Externally published	Yes

Keywords

Principle of entropy increase
Second law of thermodynamics
Spontaneity
Total entropy criterion

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10.1016/j.tsep.2019.100380

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abstract = "In interpreting and teaching of the laws of thermodynamics, the system and its immediate surroundings are usually combined to constitute a composite isolated system to use the principle of entropy increase for predicting the spontaneity of a process, and even of a process in the original system, which is called total entropy criterion. This paper discusses the limitations of the “total entropy criterion” by giving real examples and theoretical derivation, and points out that it is suspected of “changing the object of study”, “giving an irrelevant answer”, and a regression from the principle of entropy increase.",

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AB - In interpreting and teaching of the laws of thermodynamics, the system and its immediate surroundings are usually combined to constitute a composite isolated system to use the principle of entropy increase for predicting the spontaneity of a process, and even of a process in the original system, which is called total entropy criterion. This paper discusses the limitations of the “total entropy criterion” by giving real examples and theoretical derivation, and points out that it is suspected of “changing the object of study”, “giving an irrelevant answer”, and a regression from the principle of entropy increase.

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KW - Second law of thermodynamics

KW - Spontaneity

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On the limitations of total entropy criterion

Abstract

Keywords

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