Siberian Federal University 
- Issue
- Journal of Siberian Federal University. Engineering & Technologies. 2016 9 (8)
- Authors
- Zhakatayev, Toksan A.; Sakipov, Kamalkhan E.; Kakimova, Klara Sh.
- Contact information
- Zhakatayev, Toksan A.: L.N. Gumilev Eurasian National University 13 K. Munitpasova Str., Astana, 010008, Kazakhstan; ; Sakipov, Kamalkhan E.: L.N. Gumilev Eurasian National University 13 K. Munitpasova Str., Astana, 010008, Kazakhstan; Kakimova, Klara Sh.: Karaganda State Technical University 56 Mira Boulevard Str., Karaganda, 100027, Kazakhstan
- Keywords
- thermodynamic function; pushing through work; thermodynamic potentials; enthalpy; law of energy conservation; moving volume of gas; mobile borders; final volume; final interval of change
- Abstract
In article the comparative analysis of differential and integrated consideration of thermodynamic process is carried out. It is shown that use of the rule of replacement of variables of integration leads to correct output of main thermodynamic functions (an enthalpy, Helmholtz's function and Gibbs's function). It occurs through integrated consideration of thermodynamic process when parameters change in final (limited) intervals. It is established that Integrated consideration of the law of energy conservation in general view for the moving final volume of liquid or gas leads to «expanded» option of formula for the first law of thermodynamics. At the same time the equations recorded in differential form taking into account different types of technical work. Communications between the work of pushing through of some volume of gas and work connected with pressure at expansion of gas volume are shown
- Pages
- 1314-1325
- Paper at repository of SibFU
- https://elib.sfu-kras.ru/handle/2311/30354
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).