Cov txheej txheem:
Video: Dab tsi yog cov tshuaj tiv thaiv rov qab thiab piv txwv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Reversible Reactions
A rov qab cov tshuaj tiv thaiv yog a tshuaj tiv thaiv nyob rau hauv uas kev hloov dua siab tshiab ntawm reactants rau cov khoom thiab hloov dua siab tshiab ntawm cov khoom rau reactants tshwm sim ib txhij. Ib piv txwv ntawm a rov qab cov tshuaj tiv thaiv yog cov tshuaj tiv thaiv Cov pa roj hydrogen thiab iodine vapor los ntawm hydrogen iodide.
Kuj nug, txhais li cas los ntawm cov tshuaj tiv thaiv rov qab?
A rov qab cov tshuaj tiv thaiv yog tshuaj tshuaj tiv thaiv qhov twg cov reactants tsim cov khoom uas, nyob rau hauv lem, teb ua ke muab cov reactants rov qab. Reversible cov tshuaj tiv thaiv yuav mus txog qhov sib npaug qhov chaw uas cov concentrations ntawm cov reactants thiab cov khoom yuav tsis hloov lawm.
Tsis tas li ntawd, cov piv txwv ntawm kev hloov pauv rov qab yog dab tsi? Piv txwv ntawm kev hloov pauv rov qab
- Melting: Melting yog thaum cov khoom hloov mus rau hauv cov kua tom qab cua sov. Piv txwv ntawm melting yog tig dej khov rau hauv dej.
- Freezing: Kev khov yog thaum cov kua hloov mus rau hauv cov khoom. Piv txwv ntawm kev khov yog tig dej rau hauv dej khov.
- Boiling: Boiling yog thaum cov kua hloov mus rau hauv cov roj.
Nyob rau hauv txoj kev no, puas yog tag nrho cov kev cuam tshuam thim rov qab?
Hauv kev muaj tiag tag nrho tshuaj cov tshuaj tiv thaiv yog thim rov qab yog tias cov khoom tseem nyob hauv qhov sib tov. Yog li hauv qhov piv txwv saum toj no, yog tias koj ua kom sov cov khoom, lawv rov qab los ntawm qhov kev ua kom lub zog hump thiab rov qab mus rau qhov qub reactants (txawm li cas los xij qhov no tseem tuaj yeem tshwm sim tsis tu ncua).
Vim li cas cov tshuaj tiv thaiv thim rov qab?
Hauv rov qab cov tshuaj tiv thaiv , raws li cov reactants teb nrog rau lwm cov reactants los tsim cov khoom, cov khoom yog reacting nrog rau lwm yam khoom los ua reactants. Rov qab tsis tau cov tshuaj tiv thaiv tsuas yog mus rau hauv ib qho kev taw qhia, yog li cov tshuaj tiv thaiv yeej tsis muaj kev sib npaug.
Pom zoo:
Vim li cas cov tshuaj tiv thaiv kev zom zaub mov hu ua hydrolysis cov tshuaj tiv thaiv?
Thaum lub sij hawm zom mov, piv txwv li, decompositionreactions zom cov zaub mov loj rau hauv cov me me los ntawm kev ntxiv cov dej molecules. Hom tshuaj no hu ua hydrolysis. Raws li dej absorbs heatenergy, qee lub zog yog siv los rhuav tshem hydrogenbonds
Ib qho piv txwv ntawm oxidation txo cov tshuaj tiv thaiv yog dab tsi?
Nyob rau hauv ib qho oxidation-txo, los yog redox, cov tshuaj tiv thaiv, ib lub atom los yog compound yuav nyiag electrons los ntawm lwm lub atom los yog compound. Ib qho piv txwv classic ntawm cov tshuaj tiv thaiv redox yog xeb. Thaum xeb tshwm sim, oxygen steals electrons los ntawm hlau. Oxygen tau txo qis thaum hlau tau oxidized
Cov tshuaj tiv thaiv dab tsi yog qhov tshuaj tiv thaiv neutralization?
Neutralization yog ib hom tshuaj tiv thaiv nyob rau hauv uas muaj zog acid thiab muaj zog puag react nrog ib leeg los tsim dej thiab ntsev
Cov txheej txheem dab tsi ua rau Bowen cov tshuaj tiv thaiv series piv txwv?
Nws yog ib qho txhais tau tias ntawm kev txheeb xyuas cov igneous silicate minerals los ntawm qhov kub ntawm lawv crystallise. Bowen's Reaction Series piav qhia txog qhov kub ntawm qhov sib txawv ntawm cov khoom siv silicate hloov pauv los ntawm cov kua mus rau theem khoom (los yog los ntawm cov khoom mus rau cov kua)
Dab tsi yog tshuaj lom neeg cov tshuaj tiv thaiv thiab cov tshuaj tiv thaiv lub cev?
Qhov sib txawv ntawm cov tshuaj tiv thaiv lub cev thiab cov tshuaj tiv thaiv tshuaj yog muaj pes tsawg leeg. Hauv cov tshuaj tiv thaiv tshuaj, muaj kev hloov pauv ntawm cov tshuaj hauv nqe lus nug; nyob rau hauv ib qho kev hloov ntawm lub cev muaj qhov sib txawv ntawm qhov tsos, tsis hnov tsw, los yog cov duab yooj yim ntawm cov qauv ntawm cov teeb meem yam tsis muaj kev hloov pauv hauv cov ntsiab lus