Qhov sib txawv tseem ceeb ntawm cov pa thiab carbon dioxide yog cov pa oxygen yog ib qho diatomic molecule uas muaj ob lub pa oxygen thaum carbon dioxide yog triatomic molecule muaj ib tug carbon atom thiab ob oxygen atoms.
Cov pa roj carbon dioxide thiab cov pa roj carbon dioxide yog ob qhov tseem ceeb hauv lub ntiaj teb huab cua. Qhov no yog vim nws qhov tseem ceeb rau cov kab mob nyob. Ib yam li ntawd, peb xav tau oxygen rau kev ua pa, thiab cov pa roj carbon dioxide tawm thaum lub sijhawm ua pa. Peb xav tau qhov nqus pa oxygen los tsim lub zog (ATP) hauv cov hlwb nyob los ntawm cov txheej txheem hu ua cellular respiration. Ntawm qhov tod tes, cov nroj tsuag siv carbon dioxide rau photosynthesis los tsim cov carbohydrates. Yog li, cov nroj tsuag koom nrog hauv kev tswj cov pa oxygen, carbon dioxide sib npaug hauv huab cua.
Oxygen yog dab tsi?
Oxygen gas yog cov roj diatomic uas muaj ob lub pa oxygen atoms sib koom ua ke ntawm ob daim ntawv cog lus. Ob lub pa oxygen atom no khi nrog ib leeg los ntawm covalent tshuaj sib txuas. Yog li ntawd, cov pa oxygen molecule yog ib qho molecular compound (los yog covalent compound). Ntawm qhov ntsuas kub thiab siab, qhov sib xyaw no muaj nyob hauv lub xeev gaseous.
Tsis tas li ntawd, peb cov huab cua muaj li ntawm 21% ntawm cov roj no. Thiab, nws yog xim tsis muaj ntxhiab thiab tsis muaj ntxhiab. Nws yog ib qho tseem ceeb heev rau lub neej hauv ntiaj teb vim peb siv cov roj no rau kev ua pa ntawm tes. Tsis tas li ntawd, cov pa oxygen atoms yog cov khoom tseem ceeb hauv cov kab ke lom neeg muaj nyob hauv bio-molecules xws li carbohydrates, proteins thiab nucleic acids.
Daim duab 01: Diatomic Oxygen Molecule
Photosynthesis, ntawm qhov tod tes, yog txheej txheem tseem ceeb uas cov nroj tsuag siv lub zog ntawm lub hnub ci los tsim cov carbohydrates thiab oxygen los ntawm dej thiab carbon dioxide. Ib qho allotrope ntawm oxygen, ozone, ua rau ib txheej ntawm cov huab cua sab saud uas tuaj yeem tiv thaiv peb ntawm UV rays.
Hauv luv luv, muaj ntau yam zoo ntawm cov roj no; Nws yooj yim yaj hauv dej, uas ua rau nws yooj yim rau kev thauj mus los thoob plaws tib neeg lub cev los ntawm cov kua dej hauv lub cev. Tsis tas li ntawd, peb tuaj yeem tau txais cov pa roj purity siab los ntawm fractional distillation ntawm liquefied cua. Cov pa roj no ua rau tag nrho cov ntsiab lus tsim oxides tshwj tsis yog cov roj inert. Yog li ntawd, nws yog ib qho zoo oxidizing tus neeg sawv cev. Oxygen yog qhov tseem ceeb rau combustion thiab. Cov pa oxygen muaj txiaj ntsig zoo hauv tsev kho mob, vuam, thiab hauv ntau lwm yam lag luam.
carbon dioxide yog dab tsi?
Carbon dioxide yog triatomic molecule uas muaj ib qho carbon atom thiab ob lub atoms oxygen. Txhua cov pa oxygen atom tsim ob daim ntawv cog lus nrog carbon. Yog li ntawd, lub molecule muaj ib tug linear geometry. Qhov hnyav molecular ntawm carbon dioxide yog 44 g mole -1 Cov tshuaj formula yog CO 2,thiab nws yog roj tsis muaj xim. Tsis tas li ntawd, nyob rau hauv dej, nws tsim carbonic acid. Qhov tseem ceeb tshaj, cov roj no yog denser dua huab cua. Qhov concentration ntawm carbon dioxide yog 0.03% hauv huab cua.
Daim duab 02: Triatomic Molecule ntawm Carbon Dioxide
Txawm li cas los xij, cov pa roj carbon dioxide nyob hauv huab cua sib npaug nws cov ntsiab lus hauv huab cua los ntawm lub voj voog carbon. Cov peev txheej ntawm cov roj no uas tawm mus rau qhov chaw muaj xws li qee cov txheej txheem ntuj xws li kev ua pa, hluav taws kub hnyiab, thiab los ntawm tib neeg kev ua ub no xws li fossil roj hlawv hauv tsheb thiab chaw ua haujlwm. Ntxiv mus, cov txheej txheem ntawm photosynthesis tshem tawm carbon dioxide los ntawm huab cua, thiab yog li, nws deposits li carbonates nyob rau hauv lub sij hawm ntev.
Cov tib neeg cuam tshuam (cov roj pob txha hlawv, kev rhuav tshem) ua rau muaj kev tsis sib haum xeeb hauv lub voj voog carbon, nce CO2 roj qib. Cov teeb meem thoob ntiaj teb ib puag ncig zoo li cov kua qaub los nag, cov nyhuv tsev cog khoom, lub ntiaj teb ua kom sov tau ua rau muaj qhov tshwm sim ntawm qhov ntawd. Cov roj no muaj txiaj ntsig los ua cov dej qab zib, hauv kev lag luam bakery, ua hluav taws tua hluav taws, thiab lwm yam.
Qhov txawv ntawm Oxygen thiab Carbon Dioxide yog dab tsi?
Cov pa roj carbon dioxide yog cov pa roj carbon diatomic uas muaj ob lub pa oxygen atoms sib koom ua ke ntawm ob daim ntawv cog lus thaum carbon dioxide yog triatomic molecule uas muaj ib qho carbon atom thiab ob lub pa oxygen atoms. Yog li, qhov sib txawv tseem ceeb ntawm cov pa oxygen thiab carbon dioxide yog tias cov pa oxygen yog ib qho diatomic molecule uas muaj ob lub pa oxygen thaum carbon dioxide yog triatomic molecule muaj ib qho carbon atom thiab ob lub pa oxygen atoms. Tsis tas li ntawd, cov tshuaj formula ntawm cov pa oxygen yog O2 thaum cov tshuaj formula ntawm cov pa roj carbon dioxide yog CO2.
Tau qhov ntawd, lwm qhov sib txawv tseem ceeb ntawm cov pa oxygen thiab cov pa roj carbon dioxide yog tias cov pa oxygen hauv huab cua yog qhov sib piv siab heev (21%) dua li cov ntsiab lus ntawm carbon dioxide (0.03%). Raws li lwm qhov sib txawv tseem ceeb ntawm ob cov pa roj no, peb tuaj yeem ua lub luag haujlwm ntawm txhua qhov roj hauv cov txheej txheem ua pa; Peb nqus pa pa thaum nqus pa carbon dioxide.
Summary – Oxygen vs Carbon Dioxide
Oxygen thiab carbon dioxide yog cov khoom siv roj av hauv huab cua. Qhov sib txawv tseem ceeb ntawm cov pa oxygen thiab carbon dioxide yog tias cov pa oxygen yog ib qho diatomic molecule muaj ob lub pa oxygen thaum carbon dioxide yog triatomic molecule muaj ib qho carbon atom thiab ob lub pa oxygen atoms.
