Nitrogen Fixation: Rate and Equilibria of Chemical Reactions

Tehnološki postupci fiksacije dušika, dobivanja dušične kiseline (Birkeland-Eydeov) i amonijaka (Haber-Boschov) iz zraka primjeri su na kojima se može naučiti ne samo o važnosti kemije u svakodnevnom životu i njezinu utjecaju na svjetsko gospodarstvo i svjetsku povijest nego mogu poslužiti i za upoznavanje učenika s kemijskom kinetikom i termodinamikom. U oba postupka uspjeh (iskoristivost) ovisi o uspostavljanju ravnoteže pri najboljim uvjetima te ubrzavanju i usporavanju reakcija. U Birkeland-Eydeovom postupku to se postiže promjenom temperature, a u Haber-Boschovom dobrim izborom temperature, tlaka i katalizatora. Ovo djelo je dano na korištenje pod licencom Creative Commons Imenovanje 4.0 međunarodna.
Presentation of technological processes for the production of nitric acid (Birkeland-Eyde) and ammonia (Haber-Bosch) by nitrogen fixation points not only to the importance of chemical technology in world economy and politics, but it could also provide a way for the teaching of chemical kinetics and thermodynamics. The success (yield) of both processes depends mostly on establishing chemical equilibrium at the best conditions and with the proper rate of reaction. In Birkeland-Eyde process, a good yield is managed by regulation of temperature, while in Haber-Bosch synthesis, it is obtained by a fine interplay of temperature and pressure along with a good choice of catalyst. This work is licensed under a Creative Commons Attribution 4.0 International License.