Nqe lus twg sawv cev rau txoj cai thib ob ntawm thermodynamics?
Nqe lus twg sawv cev rau txoj cai thib ob ntawm thermodynamics?

Video: Nqe lus twg sawv cev rau txoj cai thib ob ntawm thermodynamics?

Video: Nqe lus twg sawv cev rau txoj cai thib ob ntawm thermodynamics?
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Cov Thib ob txoj cai ntawm Thermodynamics hais tias lub xeev ntawm entropy ntawm tag nrho lub ntiaj teb, raws li ib tug cais system, yuav ib txwm nce nyob rau hauv lub sij hawm. Cov ob txoj cai kuj tau hais tias qhov kev hloov pauv hauv entropy hauv lub ntiaj teb yuav tsis muaj qhov tsis zoo.

Tsis tas li ntawd, txoj cai thib ob ntawm thermodynamics txhais li cas?

Thawj Txoj Cai Thermodynamics hais tias lub zog tsis tuaj yeem tsim lossis rhuav tshem; tag nrho lub zog ntawm lub ntiaj teb nyob twj ywm tib yam. Cov Thib ob txoj cai ntawm Thermodynamics yog hais txog qhov zoo ntawm lub zog. Nws hais tias thaum lub zog hloov pauv lossis hloov pauv, ntau thiab ntau ntawm nws yog nkim.

Qhov thib ob, cov piv txwv twg piav txog Txoj Cai Thib Ob ntawm Thermodynamics? Txoj cai thib ob hais tias muaj ib lub xeev muaj txiaj ntsig sib txawv hu ua entropy S. Kev hloov pauv hauv entropy delta S yog sib npaug rau kub Hloov delta Q faib los ntawm qhov kub thiab txias T. Ib qho piv txwv ntawm cov txheej txheem thim rov qab yog qhov zoo tshaj plaws yuam kom ntws los ntawm cov yeeb nkab constricted.

Ib sab saum toj, nqe lus twg zoo tshaj plaws piav qhia Txoj Cai Thib Ob ntawm Thermodynamics?

Cov thib ob txoj cai ntawm thermodynamics hais tias tag nrho cov entropy ntawm ib qho kev sib cais tsis tuaj yeem txo qis thaum lub sijhawm, thiab yog qhov tsis tu ncua yog tias txhua qhov txheej txheem thim rov qab. Isolated systems spontaneously evolve mus rau thermodynamic equilibrium, lub xeev nrog siab tshaj plaws entropy.

Qhov unit ntawm entropy yog dab tsi?

The SI chav tsev rau Entropy (S) yog Joules per Kelvin (J/K). Tus nqi zoo dua ntawm entropy txhais tau hais tias ib qho tshuaj tiv thaiv yuav tshwm sim spontaneously.

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