Video: Puas muaj cov kaw lus kaw?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
kaw systems ua tsis yog muaj nyob rau hauv qhov
Nyob rau hauv lub siab nruj ntawm " kaw " tshuab , lawv muaj tsuas yog thaum lawv raug cai tshuab , vim txhua yam "real tshuab "los yog" tshuab nyob rau hauv qhov" yog qhib.
Ib yam li ntawd, koj tuaj yeem nug, puas yog lub kaw lus kaw tau?
Hauv thermodynamics, a kaw qhov system tuaj yeem pauv lub zog (xws li cua sov lossis ua haujlwm) tab sis tsis muaj teeb meem, nrog nws qhov chaw nyob ib puag ncig. Ib qho cais qhov system tsis tuaj yeem pauv cov cua sov, ua haujlwm, lossis teeb meem nrog ib puag ncig, thaum qhib qhov system tuaj yeem pauv lub zog thiab teeb meem.
Tsis tas li ntawd, lub cav tsheb puas yog kaw kaw? (b) Cov roj hlawv hauv lub tog raj kheej ntawm a tsheb cav yog ib qho piv txwv ntawm thermodynamic qhov system . A qhov system hu ua cais los yog kaw qhov system yog hais tias nws yog kiag li cais los ntawm nws ib puag ncig-piv txwv li, ib tug roj uas yog surrounded los ntawm immovable thiab thermally insulating phab ntsa.
Ib yam li ib tug yuav nug, dab tsi yog cov piv txwv ntawm kaw tshuab?
Lwm tus piv txwv ntawm a kaw qhov system yog lub lauj kaub tais diav los yog lub lauj kaub kib, ntawm lub qhov cub, thaum nws lub hau yog kaw . Nyob rau hauv no configuration lub saucepan los yog frying lauj kaub tau txais cua sov (lub zog) los ntawm lub qhov cub, thaum tsis muaj huab cua nkag los yog tawm hauv lub lauj kaub, yog li ua rau nws ib tug ntau ntawm cov khoom. kaw qhov system.
Qhov txawv ntawm qhov kaw thiab qhib qhov system yog dab tsi?
Ib qhib qhov system txhais tau tias " system hauv Kev sib pauv ntawm cov teeb meem nrog nws ib puag ncig, nthuav qhia ntshuam thiab xa tawm, txhim kho thiab rhuav tshem nws cov khoom siv. " kaw kaw kaws , ntawm qhov tod tes, raug tuav kom cais tawm ntawm lawv ib puag ncig.
Pom zoo:
Yuav ua li cas yog kaw kaw nyob rau hauv lub system txoj kev xav?
Ib daim ntawv xyoo 1993, General Systems Theory los ntawm David S. Walonick, Ph. D., hais hauv ib feem, 'Lub kaw lus kaw yog ib qho uas muaj kev cuam tshuam tshwm sim ntawm cov kab ke thiab tsis yog nrog ib puag ncig. Lub kaw lus qhib yog ib qho uas tau txais cov tswv yim los ntawm ib puag ncig thiab / lossis tso tawm cov khoom tawm mus rau ib puag ncig
Cov nqe lus twg zoo tshaj plaws piav qhia txog qhov tseem ceeb ntawm cov lus qhia muaj nuj nqis?
Qhov tsis suav nrog tus nqi ntawm ib qho kev qhia rational yog qhov tseem ceeb uas tus denominator ntawm qhov kev qhia yog xoom. Tsis tas li ntawd, tus naj npawb ntawm zeros ntawm ib tug polynomial yeej ib txwm tsawg dua los yog sib npaug rau degree ntawm lub polynomial. Yog li ntawd, tus naj npawb ntawm cov txiaj ntsig tsis suav nrog cov lus qhia muaj txiaj ntsig tsis tuaj yeem tshaj li qib ntawm tus lej
Dab tsi yog qhov txawv ntawm qhov kaw kaw thiab qhib qhov system hauv chemistry?
Ib puag ncig yog txhua yam tsis nyob hauv qhov system, uas txhais tau tias tag nrho ntawm lub ntiaj teb. Qhov no yog hu ua qhib qhov system. Yog tias tsuas muaj kev sib pauv cua sov tshwm sim ntawm qhov system thiab nws qhov chaw nyob ib puag ncig nws yog hu ua kaw kaw. Tsis muaj teeb meem tuaj yeem nkag lossis tawm hauv qhov kaw
Puas yog cov ntsiab lus uas muaj cov tshuaj lom neeg zoo sib xws yuav pom nyob rau tib lub sijhawm lossis hauv tib pab pawg piav qhia koj cov lus teb?
Qhov no yog vim hais tias cov tshuaj muaj zog nyob ntawm tsis muaj valence electrons. Raws li nyob rau hauv ib pawg tag nrho cov ntsiab lus muaj tib yam tsis muaj valence electron uas yog vim li cas lawv muaj cov tshuaj zoo sib xws tab sis nyob rau hauv ib lub sij hawm tsis muaj valence electron sib txawv uas yog vim li cas lawv txawv nyob rau hauv chemical zog
Puas muaj kev kaw cov cuab yeej ntawm kev rho tawm uas siv rau tag nrho cov lej?
Kaw yog cov cuab yeej ua lej ntsig txog cov lej thiab kev ua haujlwm. Yog tias qhov kev ua haujlwm ntawm ob tus lej hauv lub teeb ua rau tus lej uas nyob hauv lub teeb, peb tau kaw. Peb pom tias cov txheej txheem ntawm tag nrho cov lej tsis raug kaw hauv qab kev rho tawm, tab sis pawg ntawm cov lej raug kaw undersubtraction