Qhov kev sib npaug twg qhia qhov nce hauv entropy?
Qhov kev sib npaug twg qhia qhov nce hauv entropy?

Video: Qhov kev sib npaug twg qhia qhov nce hauv entropy?

Video: Qhov kev sib npaug twg qhia qhov nce hauv entropy?
Video: Qhia txhais 50 zaj npau suav tias yog dab tsi part 3 15 Sep 2019 2024, Kaum ib hlis
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Lub Boltzmann kev sib npaug

Microstates yog ib lo lus siv los piav txog cov naj npawb ntawm cov kev sib txawv ntawm txoj haujlwm molecular thiab lub zog kinetic ntawm ib lub xeev thermodynamic. Cov txheej txheem uas muab ib qho nce Yog li ntawd, nyob rau hauv tus naj npawb ntawm microstates nce tus entropy.

Tib neeg kuj nug, qhov twg cov tshuaj tiv thaiv ua rau nce hauv entropy?

(5) Txhua yam tshuaj tshuaj tiv thaiv uas nce tus naj npawb ntawm cov roj molecules kuj nce entropy . Ib qho tshuaj tshuaj tiv thaiv uas nce tus naj npawb ntawm cov roj molecules yuav yog a tshuaj tiv thaiv uas nchuav lub zog rau hauv ib qho system. Ntau lub zog ua rau koj ntau dua entropy thiab randomness ntawm cov atoms.

Qhov thib ob, koj paub li cas yog tias entropy nce lossis txo qis? A txo nyob rau hauv tus naj npawb ntawm moles ntawm cov khoom sab txhais tau tias qis dua entropy . Ib nce nyob rau hauv tus naj npawb ntawm moles ntawm cov khoom sab txhais tau tias ntau dua entropy . Yog cov tshuaj tiv thaiv muaj ntau theem, ntau lawm cov pa roj nce tus entropy ntau tshaj ib qho nce nyob rau hauv moles ntawm cov kua los yog khoom.

Tsis tas li ntawd, koj yuav xam qhov nce entropy li cas?

Entropy nce thaum koj mus los ntawm cov khoom mus rau cov kua rau roj, thiab koj tuaj yeem twv seb puas yog entropy kev hloov pauv yog qhov zoo lossis tsis zoo los ntawm kev saib cov theem ntawm cov reactants thiab cov khoom. Thaum twg muaj ib qho nce hauv gas moles, entropy yuav nce.

Puas yog entropy zoo lossis tsis zoo?

Cov tshuaj tiv thaiv yuav tshwm sim, raws li nyob rau hauv cov tshuaj tiv thaiv exothermic H yog tsis zoo , thiab if entropy nce, ces S yog zoo , yog: Total entropy hloov yog zoo , yog li cov tshuaj tiv thaiv ua tau. Cov tshuaj tiv thaiv tsis tuaj yeem tshwm sim, raws li H yog zoo thiab S yog tsis zoo : Tag nrho entropy hloov yog tsis zoo thiab yog li cov tshuaj tiv thaiv tsis tuaj yeem tshwm sim.

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