Video: Puas muaj ib qho kev sib cais?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib isolated system ua tsis pauv zog lossis teeb meem nrog nws ib puag ncig. Piv txwv li, yog cov kua zaub yog nchuav rau hauv ib lub thawv insulated (raws li pom hauv qab no) thiab kaw, tsis muaj qhov sib pauv ntawm cov cua sov lossis teeb meem. Qhov tseeb, muaj ob peb, yog tias muaj, tshuab uas muaj nyob rau hauv lub ntiaj teb no uas yog kiag li cais systems.
Hauv qhov no, dab tsi cais qhov system?
Nyob rau hauv lub cev science, ib cais qhov system yog ob qho ntawm cov hauv qab no: lub cev qhov system kom deb li deb tshem tawm ntawm lwm yam tshuab tias nws tsis cuam tshuam nrog lawv. ib tug thermodynamic qhov system thaiv los ntawm cov phab ntsa tsis txav mus los uas tsis muaj qhov loj lossis lub zog tuaj yeem dhau mus.
Qhov thib ob, tib neeg puas yog ib qho kev kaw kaw lossis qhib qhov system? Qhib systems pauv cov teeb meem thiab lub zog nrog rau sab nraud qhov system . kaw kaw kaws tsuas yog pauv lub zog nrog rau sab nraud qhov system , tsis muaj teeb meem. Ib cais qhov system tsis pauv zog lossis teeb meem nrog rau sab nraud qhov system.
Ua li no, ib qho kev sib cais puas tuaj yeem ua haujlwm tau?
Ib cais qhov system yog a qhov system nyob rau hauv uas tsis muaj kev hloov ntawm lub zog ntawm lub qhov system thiab ib puag ncig. Yog li, tag nrho ua haujlwm hloov mus rau ib qho cais qhov system yog zero. Yog li tsis muaj qhov tsis zoo lossis qhov zoo ua haujlwm.
Vim li cas thiaj tsis muaj kev sib cais?
Ib cais qhov system tsis pauv zog lossis teeb meem nrog nws ib puag ncig. Piv txwv li, yog cov kua zaub yog nchuav rau hauv ib lub thawv insulated thiab kaw, nyob ntawd yog tsis muaj pauv cov cua sov los yog teeb meem. Yog li, xyaum nws yog tsis yooj yim sua kom ua 100% cais qhov system.
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Algebraic qhia ?: Cov lus lej suav nrog tsawg kawg ib qho sib txawv thiab qee zaum tus lej thiab cov cim ua haujlwm