Qhov sib txawv tseem ceeb ntawm kaw kaw thiab qhib qhov system yog tias nyob rau hauv kaw kaw, qhov teeb meem tsis pauv nrog ib puag ncig tab sis, lub zog sib pauv nrog ib puag ncig whereas hauv qhov qhib, ob qho tib si teeb meem thiab lub zog sib pauv nrog ncig.
Rau lub hom phiaj ntawm chemistry, peb tuaj yeem faib lub ntiaj teb ua ob ntu; "system" thiab "ib puag ncig". Lub kaw lus tuaj yeem yog lub cev, lub cev muaj zog lossis txawm tias ib lub cell. Muaj ib thaj tsam ntawm ib qho system thiab ib puag ncig. Lub Scope ntawm lub system nyob ntawm cov ciam teb no. Qee lub sij hawm tseem ceeb thiab lub zog sib pauv los ntawm cov ciam teb no. Peb tuaj yeem paub qhov txawv ntawm cov tshuab los ntawm hom kev sib cuam tshuam uas lawv muaj lossis los ntawm hom kev sib pauv tshwm sim. Ntxiv mus, peb tuaj yeem faib cov tshuab no ua ob lub kaw lus qhib thiab kaw kaw.
Caw System yog dab tsi?
Yog qhov teeb meem tsis hloov mus los ntawm tus ciam teb, peb hu cov txheej txheem ntawd ua qhov kaw kaw. Txawm li cas los xij, nyob rau hauv lub kaw lus kaw zog pauv nrog ib puag ncig. Qhov teeb meem hauv lub kaw lus kaw yog ib txwm zoo ib yam. Thaum muaj qhov tshwm sim tshwm sim, lub kaw lus tuaj yeem nthuav dav, lossis nws tuaj yeem hloov lub zog mus rau ib puag ncig yog tias nws nyob ntawm qhov kub thiab txias. Piv txwv li, thaum muaj cov kua compressed nyob rau hauv lub piston, nws yog ib tug kaw system. Muaj qhov loj ntawm cov kua dej tsis hloov, tab sis lub ntim yuav hloov.
Daim duab 01: Qhov system thiab nws thaj tsam hauv kev sib cuag nrog ib puag ncig
Ib qho kev cais tawm kuj yog qhov kaw kaw. Txawm li cas los xij, nws txawv ntawm lub kaw lus kaw, vim tias qhov kev sib cais tsis muaj kev sib cuag nrog cov khoom siv hluav taws xob lossis cov cua sov nrog nws ib puag ncig. Nrog rau lub sijhawm, cov tshuab cais tawm mus txog qhov sib npaug ntawm qhov ntsuas kub los ntawm kev ntsuas lub siab, kub lossis lwm yam sib txawv.
Dab tsi yog Open System?
Nyob rau hauv ib qho kev qhib, qhov teeb meem thiab lub zog hloov mus los ntawm tus ciam teb ntawm lub kaw lus thiab ib puag ncig. Txij li thaum nws qhib, nws tsis tu ncua cuam tshuam nrog ib puag ncig. Piv txwv li, peb lub cev yog lub kaw lus qhib. Nws yog ib qho nyuaj los tswj lub zog khiav hauv thiab tawm ntawm qhov qhib qhov system. Tsis tas li ntawd, lub zog sib npaug kuj nyuaj. Txij li thaum nws qhib, qhov loj ntawm qhov system tsis tas yuav tsum tas li; es nws ntim tas li.
Daim duab 01: Thawj txoj cai ntawm Thermodynamics: Qhib System
Thawj txoj cai ntawm thermodynamics cuam tshuam rau cov tshuab qhib. Nws hais txog lub zog sab hauv ntawm lub kaw lus qhib. Peb tuaj yeem hloov lub zog sab hauv ntawm lub cev los ntawm kev ua haujlwm ntawm lub kaw lus lossis cua sov. Kev hloov pauv hauv lub zog sab hauv ntawm lub kaw lus qhib yog sib npaug ntawm lub zog uas peb yuav tsum tau ntxiv rau lub system (los ntawm kev ua cua sov lossis ua haujlwm) rho tawm cov nyiaj poob los ntawm cov teeb meem ntws tawm thiab lub zog poob vim kev ua haujlwm tau ua los ntawm cov system.
Qhov txawv ntawm Kaw System thiab Qhib System yog dab tsi?
Yog hais tias qhov teeb meem tsis hloov mus los ntawm tus ciam teb, qhov zoo li ntawd yog qhov kaw kaw. Whereas, nyob rau hauv ib qho qhib system, ob qho tib si qhov teeb meem thiab lub zog hloov mus los ntawm tus ciam teb ntawm lub system thiab ib puag ncig. Yog li, qhov sib txawv tseem ceeb ntawm qhov kaw kaw thiab qhib qhov system yog qhov kaw kaw tsis pub muaj kev sib pauv ntawm qhov system thiab ib puag ncig thaum lub kaw lus qhib tso cai rau kev sib pauv ntawm cov teeb meem. Tsis tas li ntawd, lwm qhov sib txawv ntawm qhov kaw kaw thiab qhib qhov system yog qhov kaw kaw muaj qhov loj tas mus li qhov chaw qhib muaj qhov sib txawv.
Ntxiv mus, kuj tseem muaj qhov sib txawv ntawm qhov kaw kaw thiab qhib qhov system hauv kev tswj hwm qhov xwm txheej. Ntawd yog, tsis zoo li hauv kaw kaw, hauv lub kaw lus qhib nws nyuaj rau tswj lub zog ntws thiab lwm yam tsis muaj.
Summary – Kaw System vs Qhib System
Ib qhov system yog ib feem uas tshwm sim nyob ib puag ncig. Muaj ntau hom kev sib cuag ntawm qhov system thiab ib puag ncig. Raws li, muaj ob lub tshuab; qhib qhov system thiab kaw qhov system. Qhov sib txawv tseem ceeb ntawm qhov kaw kaw thiab qhib qhov system yog tias nyob rau hauv lub kaw lus kaw, qhov teeb meem tsis pauv nrog ib puag ncig tab sis, lub zog sib pauv nrog ib puag ncig whereas nyob rau hauv ib qho qhib system, ob qho tib si teeb meem thiab lub zog sib pauv nrog ib puag ncig.
