Video: Puas yog PH yog cov khoom siv tshuaj lom neeg lossis lub cev?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A chemical khoom yog ib tug yam ntxwv uas tsuas yog ntsuas los ntawm kev hloov ib yam khoom tshuaj tus kheej. A chemical khoom tsis tuaj yeem tsim los ntawm kev kov lossis saib cov khoom. Yuav tsum muaj ib tshuaj hloov mus pom nws! Qee qhov piv txwv yog: flammability, pH , thiab reactivity nrog dej los yog acid.
Ntawm no, puas yog radioactivity yog tshuaj lom neeg lossis lub cev?
Piv txwv ntawm tshuaj muaj zog yog kub ntawm combustion, flammability, toxicity, thiab lwm yam A khoom ntiag tug , ntawm qhov tod tes, yog ib yam uas tuaj yeem ntsuas lossis ntsuas tau, yam tsis muaj kev hloov pauv ntawm qhov teeb meem. Thiab li no los ntawm kev txhais ntawm tshuaj thiab lub cev muaj zog , radioactivity yog a chemical khoom.
Tsis tas li, qhov ntom ntom puas yog cov khoom siv tshuaj lom neeg lossis lub cev? A khoom ntiag tug yog ib tug yam ntxwv ntawm ib yam khoom uas yuav raug soj ntsuam los yog ntsuas yam tsis tau hloov tus kheej ntawm cov khoom. Lub cev muaj zog suav nrog xim, ceev , hardness, thiab melting thiab boiling ntsiab lus. A chemical khoom piav txog lub peev xwm ntawm ib yam khoom mus rau ib qho tshwj xeeb tshuaj hloov.
Hauv qhov no, xim puas yog lub cev lossis tshuaj lom neeg?
Xim . Kev hloov ntawm xim ntawm ib yam khoom tsis tas yuav yog qhov taw qhia ntawm a tshuaj hloov. Piv txwv li, hloov cov xim ntawm ib tug hlau tsis hloov nws lub cev muaj zog . Txawm li cas los xij, hauv a tshuaj tshuaj tiv thaiv, a xim Kev hloov pauv feem ntau yog qhov qhia tau tias muaj qhov tshwm sim tshwm sim.
Dab tsi yog qhov txawv ntawm cov khoom siv tshuaj thiab lub cev?
Lub cev muaj zog tuaj yeem soj ntsuam lossis ntsuas yam tsis hloov qhov muaj pes tsawg leeg. Lub cev muaj zog yog siv los soj ntsuam thiab piav txog qhov teeb meem. Cov khoom siv tshuaj tsuas yog pom thaum lub sijhawm a tshuaj cov tshuaj tiv thaiv thiab yog li hloov cov tshuaj tshuaj muaj pes tsawg leeg.
Pom zoo:
Puas yog tsw yog tshuaj lom neeg lossis lub cev?
Yog li, xim thiab kub hloov pauv yog lub cev hloov pauv, thaum oxidation thiab hydrolysis yog tshuaj hloov pauv. Cov ntxhiab tsw yog tsim thaum cov tshuaj hloov muaj pes tsawg leeg. Li no, tsw yog ib qho tshuaj hloov pauv
Cov iav puas yog tshuaj lom neeg lossis lub cev hloov?
Cov txheej txheem ntawm kev ua iav cuam tshuam achemical hloov. Thaum lub cev hloov pauv piav qhia txog kev hloov pauv ntawm cov khoom ntiag tug ntawm cov khoom - zoo li cov dej khov rau hauv dej, lossis rhuav tshem ib daim ntawv - kev hloov pauv tshuaj lom neeg ntawm cov tshuaj nws tus kheej
Puas yog cov ntsiab lus uas muaj cov tshuaj lom neeg zoo sib xws yuav pom nyob rau tib lub sijhawm lossis hauv tib pab pawg piav qhia koj cov lus teb?
Qhov no yog vim hais tias cov tshuaj muaj zog nyob ntawm tsis muaj valence electrons. Raws li nyob rau hauv ib pawg tag nrho cov ntsiab lus muaj tib yam tsis muaj valence electron uas yog vim li cas lawv muaj cov tshuaj zoo sib xws tab sis nyob rau hauv ib lub sij hawm tsis muaj valence electron sib txawv uas yog vim li cas lawv txawv nyob rau hauv chemical zog
Puas yog cov dej npau npau yog tshuaj lom neeg lossis lub cev hloov?
Boiling waterBoiling water yog ib qho piv txwv ntawm kev hloov ntawm lub cev thiab tsis yog kev hloov tshuaj lom neeg vim tias cov dej vapor tseem muaj cov qauv molecular zoo li cov kua dej (H2O). Yog hais tias cov npuas tau tshwm sim los ntawm decomposition ntawm ib tug molecule rau hauv cov pa roj (xws li H2O → H2 thiab O2), ces boiling yuav ib tug tshuaj hloov
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