Kev sib xyaw nrog txhua cov roj khaws cia ntawm qhov ntim tas li, nrog kev hloov pauv tag nrho. … Qhov ntim tas mus li ntawm "sib xyaw", tshwj xeeb ntawm cov roj av zoo meej gases Muaj peb chav kawm ntawm cov roj zoo tagnrho:classical lossis Maxwell-Boltzmann zoo tagnrho roj, qhov zoo tagnrho quantum Bose gas, tsim los ntawm bosons, thiab. Qhov zoo tshaj plaws quantum Fermi gas, tsim los ntawm fermions. https://en.wikipedia.org › wiki › Ideal_gas
Ideal gas - Wikipedia
raug xa mus rau qee lub sijhawm hu ua Gibbs' theorem. Nws hais tias qhov entropy ntawm xws li "kev sib xyaw" ntawm cov pa roj zoo tag nrho yog xoom.
Puas sib xyaw cov pa roj nce entropy?
Thaum ob yam khoom ntshiab sib xyaw ua ke nyob rau hauv ib txwm muaj kev muaj feem ntau yog qhov nce hauv entropy ntawm qhov system. Txij li cov molecules ntawm cov roj zoo tagnrho tsis cuam tshuam qhov nce hauv entropy yuav tsum tsuas yog tshwm sim los ntawm qhov ntim ntxiv rau txhua qhov roj ntawm kev sib xyaw. …
Yuav ua li cas rau entropy thaum cov roj sib xyaw?
Vim tias cov molecules ntawm cov roj zoo tagnrho tsis cuam tshuam, peb tuaj yeem sib xyaw cov roj zoo tagnrho rau hauv ob qhov xwm txheej: Kev nthuav dav ntawm txhua qhov roj rau hauv qhov kawg ntim ntawm qhov sib tov. Lub entropy hloov nrog yog li qhov hloov pauv entropy nrog ntim.
Koj ua li cas xam cov kev hloov pauv entropy thaum sib xyaw cov roj zoo tagnrho?
Kev sib xyaw ntawm Cov Khoom Siv Zoo Tshaj Plaws
Daim duab 1: (Sab laug) Ob Gases A thiab B hauv lawvRaws li cov ntim thiab (txoj cai) Ib homogenous sib tov ntawm gases A thiab B. ΔS=nRlnV2V1. Yog li txhawm rau pom qhov hloov pauv tag nrho rau ob txoj haujlwm no, vim tias lawv tau tshwm sim tib lub sijhawm, peb tsuas ntxiv ob qhov kev hloov pauv hauv entropy ua ke.
Vim li cas entropy txo qis ntawm roj mus rau cov kua?
entroy yog txo qis vim gas yog kua . Lub entropy yog nce vim gas tau raug tsim tawm thiab tus naj npawb ntawm cov molecules nce ntxiv. Lub entropy yog txo qis vim tias plaub tag nrho cov reactant molecules yog tsim ob tag nrho cov khoom molecules. Txhua yam yog gases.
