Conversion of Chemical Reaction Energy into Useful Work in the Van’t Hoff Equilibrium Box Full article
| Journal |
Journal of Chemical Education
ISSN: 0021-9584 , E-ISSN: 1938-1328 |
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| Output data | Year: 2007, Volume: 84, Number: 6, Pages: 1053-1055 Pages count : 3 DOI: 10.1021/ed084p1053 | ||||||
| Tags | Chemical reactions; Energy conversion; Temperature; Thermodynamics | ||||||
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Abstract:
A detailed consideration of the peculiarities in the conversion of chemical reaction energy into useful work (nonexpansion work) using the ideal “van’t Hoff equilibrium box” (VHEB) is instructive for teaching undergraduate students. The VHEB illustrates work production in isothermal conditions when the quantity of work is limited by the change in the Gibbs function rather than by the Carnot coefficient. The operation of VHEB has been considered in a few textbooks (e.g., refs 1–3). In the present article, we draw attention to two aspects of the VHEB: 1. The VHEB allows the use of the energy from chemical reactions to produce useful work with the theoretical efficiency of 100%, even at uniform temperature of the system, in agreement with the second law of thermodynamics. 2. The ideal VHEB makes possible the total apparent efficiency of the utilization of the reaction energy much more than 100% of the enthalpy change during the chemical reaction. By “the total apparent efficiency” of the utilization of reaction energy we mean the ratio of the useful work done and reaction heat to the reaction heat released.
Cite:
Bazhin N.M.
, Parmon V.N.
Conversion of Chemical Reaction Energy into Useful Work in the Van’t Hoff Equilibrium Box
Journal of Chemical Education. 2007. V.84. N6. P.1053-1055. DOI: 10.1021/ed084p1053 WOS Scopus РИНЦ ANCAN OpenAlex
Conversion of Chemical Reaction Energy into Useful Work in the Van’t Hoff Equilibrium Box
Journal of Chemical Education. 2007. V.84. N6. P.1053-1055. DOI: 10.1021/ed084p1053 WOS Scopus РИНЦ ANCAN OpenAlex
Dates:
| Published print: | Jun 1, 2007 |
| Published online: | Jun 1, 2007 |
| Submitted: | Aug 3, 2009 |
Identifiers:
| Web of science: | WOS:000246555900034 |
| Scopus: | 2-s2.0-34249783452 |
| Elibrary: | 13545227 |
| Chemical Abstracts: | 2007:555249 |
| Chemical Abstracts (print): | 147:234361 |
| OpenAlex: | W2054133061 |