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Pressure‐volume work exercises illustrating the first and second laws

 

作者: William G. Hoover,   Bill Moran,  

 

期刊: American Journal of Physics  （AIP Available online 1979）
卷期: Volume 47, issue 10  

页码: 851-856

 

ISSN:0002-9505

 

年代: 1979

 

DOI:10.1119/1.11628

 

出版商: American Association of Physics Teachers

 

关键词: EDUCATION;THERMODYNAMICS;ENTROPY;STATISTICAL MECHANICS;ADIABATIC PROCESSES;WORK;EXPANSION;COMPRESSION;VOLUME;PRESSURE;GASES;ENERGY CONVERSION;ENERGY CONSERVATION;NUMERICAL SOLUTION;FIRST LAW OF THERMODYNAMICS;SECOND LAW OF THERMODYNAMICS;WORK EXERCISES

 

数据来源: AIP

 

摘要:

We present two exercises involving rapid compression and expansion of ideal gases. The exercises are useful teaching tools and illustrate the first and second laws of thermodynamics. The first problem involves the conversion of gravitational energy into heat through mechanical work. The second involves the mutual interaction of two gases through an adiabatic piston. Both local and global versions of the second law can be applied to this second exercise. Both problems are also treated by numerical fluid dynamics.

 

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