Qhov sib txawv tseem ceeb ntawm homogeneous thiab heterogeneous cov tshuaj tiv thaiv yog tias cov reactants thiab cov khoom uas koom nrog cov tshuaj tiv thaiv homogeneous nyob rau tib theem whereas cov reactants thiab cov khoom nyob rau hauv heterogeneous cov tshuaj tiv thaiv nyob rau hauv ntau theem.
Qhov homogeneity thiab heterogeneity yog ob lub ntsiab lus tshuaj uas peb piav qhia txog qhov sib xws ntawm ib qho kev kawm. Cov ntsiab lus tuaj yeem yog qhov sib xyaw ntawm cov khoom sib xyaw, cov tshuaj tiv thaiv, thiab lwm yam. Lo lus homogeneous hais txog "tib", thiab heterogeneous yog hais txog "txawv".
Homogeneous Reactions yog dab tsi?
Homogeneous cov tshuaj tiv thaiv yog tshuaj lom neeg cov tshuaj tiv thaiv uas cov reactants thiab cov khoom nyob rau hauv tib theem ntawm teeb meem. Muaj peb theem ntawm cov teeb meem; Cov theem khoom, theem ua kua, thiab roj theem. Yog hais tias cov reactants ntawm ib homogeneous cov tshuaj tiv thaiv nyob rau hauv lub gas theem, ces cov khoom muab los ntawm cov tshuaj tiv thaiv kuj yog nyob rau hauv cov roj theem.
Qhov tseem ceeb tshaj plaws homogenous cov tshuaj tiv thaiv yog cov tshuaj tiv thaiv ntawm cov pa roj thiab cov tshuaj tiv thaiv ntawm cov kua lossis cov khoom uas yaj hauv cov kua.
Daim duab 01: Oxy-Acetylene Torch Burning
Cov tshuaj tiv thaiv no yog cov tshuaj tiv thaiv yooj yim heev piv rau cov tshuaj tiv thaiv heterogeneous. Nws yog vim hais tias cov tshuaj hloov pauv tshwm sim thaum cov tshuaj tiv thaiv no tsuas yog nyob ntawm qhov kev cuam tshuam ntawm cov reactants.
Examples:
- Cov tshuaj tiv thaiv ntawm carbon monoxide thiab oxygen hauv huab cua
- Cov tshuaj tiv thaiv ntawm HCl thiab NaOH hauv dej
- Oxy-acetylene taws hlawv
Dab tsi yog Heterogeneous Reactions?
Heterogeneous cov tshuaj tiv thaiv yog tshuaj lom neeg cov tshuaj tiv thaiv uas cov reactants thiab cov khoom nyob rau hauv ob lossis ntau theem. Yog li ntawd, ib qho ntawm cov reactants thiab cov khoom tuaj yeem nyob hauv ib qho ntawm peb theem; khoom theem, theem ua kua lossis roj theem. Vim li no, cov tshuaj tiv thaiv heterogeneous tsis muaj qhov sib xws.
Daim duab 02: Cov tshuaj tiv thaiv ntawm ntsev thiab dej yog Heterogeneous
Ntxiv mus, cov kev cuam tshuam uas tshwm sim rau ntawm qhov chaw ntawm lub catalyst ntawm ib theem sib txawv kuj yog heterogeneous. Cov tshuaj tiv thaiv no nyuaj dua vim lawv xav txog theem ntawm qhov teeb meem nrog rau qhov kev cuam tshuam ntawm cov reactants.
Examples:
- Coal burning in air
- Cov tshuaj tiv thaiv ntawm ntsev thiab dej
- hlau xeb hauv qab dej
- Cov tshuaj tiv thaiv ntawm sodium hlau thiab dej
Qhov txawv ntawm Homogeneous thiab Heterogeneous Reactions yog dab tsi?
Cov tshuaj tiv thaiv homogeneous yog tshuaj lom neeg cov tshuaj tiv thaiv uas cov reactants thiab cov khoom nyob rau hauv tib theem ntawm teeb meem. Whereas, cov tshuaj tiv thaiv heterogeneous yog cov tshuaj tiv thaiv uas cov reactants thiab cov khoom nyob rau hauv ob los yog ntau tshaj theem. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm homogeneous thiab heterogeneous cov tshuaj tiv thaiv. Ntxiv mus, lwm qhov sib txawv ntawm homogeneous thiab heterogeneous cov tshuaj tiv thaiv yog tias cov tshuaj tiv thaiv homogeneous muaj qhov sib xws thiab yooj yim heev. Nws yog vim tias cov tshuaj tiv thaiv no tsuas yog nyob ntawm qhov xwm txheej ntawm kev cuam tshuam ntawm cov reactants. Ntawm qhov tod tes, heterogeneous tshua tsis muaj uniformity. Tsis tas li ntawd, cov tshuaj tiv thaiv no nyuaj heev. Ntxiv rau qhov ntawd, cov kev cuam tshuam no xav txog theem teeb meem nrog rau qhov kev cuam tshuam ntawm cov reactants.
Cov duab hauv qab no nthuav tawm qhov sib txawv ntawm homogeneous thiab heterogeneous cov tshuaj tiv thaiv nyob rau hauv daim ntawv tabular.
Summary – Homogeneous vs Heterogeneous Reactions
Peb tuaj yeem faib cov tshuaj tiv thaiv rau ob hom xws li cov tshuaj tiv thaiv homogeneous thiab cov tshuaj tiv thaiv heterogeneous. Qhov sib txawv tseem ceeb ntawm homogeneous thiab heterogeneous cov tshuaj tiv thaiv yog tias cov reactants thiab cov khoom koom nrog cov tshuaj tiv thaiv homogeneous nyob rau tib theem whereas cov reactants thiab cov khoom nyob rau hauv heterogeneous cov tshuaj tiv thaiv nyob rau hauv ntau theem.
