2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Yog tias ΔH yog qhov tsis zoo thiab ΔS yog qhov zoo, cov tshuaj tiv thaiv yog qhov tshwm sim ntawm txhua qhov kub vim qhov kev hloov pauv ntawm Gibbs lub zog dawb yog ib txwm tsis zoo. Contrastingly, yog tias ΔH yog qhov zoo thiab ΔS yog qhov tsis zoo, cov tshuaj tiv thaiv tsis ua raws li qhov ntsuas kub raws li sau tseg.
Yuav tshuaj tiv thaiv dab tsi tsis tshwm sim ntawm qhov kub thiab txias?
Thaum ΔH tsis zoo thiab ΔS yog qhov zoo, ΔG yuav tsis zoo rau txhua qhov kub. Thaum ΔH tsis zoo thiab ΔS tsis zoo, ΔG yuav tsis zoo ntawm qhov kub thiab txias. Thaum ΔH yog qhov zoo thiab ΔS tsis zoo, ΔG yuav tsis zoo ntawm qhov kub thiab txias. Yuav tsis muaj qhov tshwm sim tshwm sim.
Yuav ua li cas thiaj tsis muaj tshuaj tiv thaiv kab mob?
Ib qho tshuaj tiv thaiv endergonic (tseem hu ua cov tshuaj tiv thaiv tsis raws cai) yog cov tshuaj tiv thaiv tshuaj uas tus qauv hloov pauv hauv lub zog dawb yog qhov zoo thiab lub zog nqus tau. Cov txheej txheem Endergonic tuaj yeem raug thawb lossis rub los ntawm kev sib txuas lawv mus rau qhov ua tau zoo heev.
Yuav ua li cas yog qhov tsim nyog rau qhov kev tshwm sim kom tshwm sim ntawm txhua qhov kub?
Thaum ΔS > 0 thiab ΔH < 0, txheej txheem ib txwm ua raws li sau tseg. Thaum ΔS 0, cov txheej txheem yeej tsis tshwm sim, tab sis cov txheej txheem rov qab yog ib txwm ua tsis tau. Thaum ΔS > 0 thiab ΔH > 0, cov txheej txheem yuav tshwm sim ntawm qhov kub thiab txias tsis ua raws li qhov ntsuas kub tsawg.
Yuav ua li cas piv txwv ntawm kev tshwm sim tshwm sim?
MuajCov tshuaj tiv thaiv ib puag ncig yog exothermic - lawv tso cov cua sov thiab sov so rau lawv ib puag ncig: piv txwv li: hlawv ntoo, foob pob hluav taws, thiab alkali hlau ntxiv rau dej. Thaum lub atom hluav taws xob sib cais, nws tso tawm lub zog: qhov no yog qhov tshwm sim ntawm tus kheej, exothermic nuclear tshuaj tiv thaiv.
Pom zoo:
Cov tshuaj tiv thaiv dab tsi rau kev txhaj tshuaj tiv thaiv thib ob?
Cov tshuaj tiv thaiv COVID-19 thib ob yog dab tsi? Cov kev mob tshwm sim feem ntau tom qab koob thib ob yog qhov mob ntawm qhov chaw txhaj tshuaj (92.1% tshaj tawm tias nws kav ntev dua 2 teev); qaug zog (66.4%); mob lub cev lossis leeg nqaij (64.
Thaum qhov kev sim xeb vim li cas qhov kub ntawm cov tshuaj tiv thaiv nce?
Feem ntau, qhov kub lossis siab nce ncaj qha ua rau tus nqi corrosion ntau dua vim tias cov tshuaj electrochemical feem ntau tshwm sim sai dua ntawm qhov kub siab dua. Kub nce ntxiv zog rau cov tshuaj tiv thaiv, uas ua rau nce tus nqi corrosion.
Vim li cas cov tshuaj tiv thaiv combustion yog cov tshuaj tiv thaiv oxidation?
Kev sib xyaw ua ke ib txwm ua rau muaj oxygen lossis huab cua. … Hauv combustion cov tshuaj tiv thaiv oxygen yog ua ke nrog cov roj qhov chaw feem ntau carbon thiab hydrogen raws li ua rau carbon dioxide thiab dej thiab yog li qhov no yog cov tshuaj tiv thaiv oxidation.
Qhov twg ua rau cov tshuaj tiv thaiv enzymatic ntawm lub voj voog calvin tshwm sim?
Tsis zoo li lub teeb pom kev teeb pom kev Teeb pom kev zoo siv lub teeb lub zog los ua ob lub molecules xav tau rau theem tom ntej ntawm photosynthesis: lub zog cia molecule ATP thiab cov hluav taws xob txo. nqa NADPH. Nyob rau hauv cov nroj tsuag, lub teeb tshwm sim tshwm sim nyob rau hauv lub thylakoid daim nyias nyias ntawm organelles hu ua chloroplasts.
Ntawm qhov kub thiab txias npaum li cas snowfall tshwm sim?
daus cov ntaub ntawv thaum lub atmospheric kub ntawm lossis qis dua(0 degrees Celsius lossis 32 degrees Fahrenheit) thiab muaj qhov tsawg kawg nkaus ntawm cov dej noo hauv huab cua. Yog hais tias av kub los yog qis dua, cov daus yuav ncav cuag hauv av.
