Thaum ib qho kev sib cais ua rau muaj kev hloov pauv hloov pauv ntawm lub ntiaj teb nce ntxiv?
Thaum ib qho kev sib cais ua rau muaj kev hloov pauv hloov pauv ntawm lub ntiaj teb nce ntxiv?

Video: Thaum ib qho kev sib cais ua rau muaj kev hloov pauv hloov pauv ntawm lub ntiaj teb nce ntxiv?

Video: Thaum ib qho kev sib cais ua rau muaj kev hloov pauv hloov pauv ntawm lub ntiaj teb nce ntxiv?
Video: Saib Mis paub Poj niam (hluas nkauj) tus yam ntxwv lub siab 2024, Kaum ib hlis
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Txij li thaum qhov system yog cais , tsis muaj cua sov tuaj yeem khiav tawm (tus txheej txheem yog li adiabatic), yog li thaum lub zog ntws tawm mus rau hauv qhov system , cov entropy ntawm system nce , i.e. ΔSys>0. Li no, lub entropy ntawm qhov system yuav tsum nce rau a tus kheej txheej txheem hauv no cais qhov system.

Ib yam li ntawd ib tug yuav nug, yog vim li cas lub entropy ntawm ib tug cais system nce?

Txoj cai thib ob ntawm thermodynamics hais tias entropy ntawm ib tug cais system yeej tsis txo qis, vim cais systems ib txwm hloov zuj zus mus rau qhov sib npaug ntawm cov thermodynamic, lub xeev nrog qhov siab tshaj plaws entropy.

Kuj Paub, thaum twg ib qho kev sib cais ua rau muaj kev hloov pauv hauv qhov system? a) Lub zog sab hauv ntawm lub ntiaj teb yog tas li. b) Lub zog tsis tuaj yeem tsim lossis rhuav tshem. c) Thaum ib qho kev sib cais ua tiav ib spontaneous hloov , lub entropy ntawm lub qhov system yuav nce. d) Ntawm qhov tsis muaj tseeb, qhov entropy ntawm lub pob zeb zoo meej yog suav tias yog xoom.

Tom qab ntawd, lo lus nug yog, dab tsi yog qhov entropy cov qauv rau kev hloov pauv nyob rau hauv ib qho kev sib cais?

Cov txheej txheem rau kev hloov pauv hloov Equilibrium yog thaum tsis muaj peev xwm hloov ntawm lub xeev uas yuav txaus siab rau qhov tsis sib xws. Thiab equilibrium rau ib cais qhov system yog ces ua tiav thaum entropy yog maximized. Thaum kawg entropy , tsis muaj kev hloov pauv hloov tuaj yeem tshwm sim.

Puas yog cov tshuaj tiv thaiv tus kheej nce entropy?

Yog tias cua sov ntws mus rau ib puag ncig (piv txwv li, thaum a tshuaj tiv thaiv yog exothermic) qhov random motions ntawm cov molecules nyob ib puag ncig nce . Yog li ntawd, lub entropy ntawm ib puag ncig nce . Txoj cai thib ob ntawm thermodynamics hais tias tag nrho entropy ntawm lub ntiaj teb ib txwm nce rau a tus kheej txheej txheem.

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