Video: Puas muaj tshuaj lom neeg tshwm sim thaum protons txuas atoms ua ke?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov atoms ntawm molecules yog txuas ua ke ntawm a tshuaj tiv thaiv lub npe hu ua tshuaj kev sib raug zoo. Atomic qauv ntawm carbon atom qhia cov particles ntawm ib atom : protons , electrons, neutrons. Thaum muaj hydrogen atom poob nws ib qho electron.
Ib yam li ntawd, tib neeg nug, puas tuaj yeem hloov kho atoms hauv cov tshuaj tiv thaiv tshuaj?
Hauv ib tshuaj tiv thaiv , cov atoms thiab cov molecules uas cuam tshuam nrog ib leeg yog hu ua reactants. Tsis muaj tshiab atoms yog tsim, thiab tsis muaj atoms puas lawm. Hauv ib tshuaj tiv thaiv , reactants tiv tauj ib leeg, bonds ntawm atoms nyob rau hauv cov reactants yog tawg, thiab atoms rearrange thiab tsim daim ntawv cog lus tshiab los ua cov khoom.
vim li cas cov tshuaj chemical tshwm sim? Tshuaj Reactions . Kev tshwm sim tshwm sim Thaum ob lossis ntau lub molecules cuam tshuam thiab cov molecules hloov. Bonds ntawm atoms raug tawg thiab tsim los tsim cov molecules tshiab.
Hauv qhov no, cov khoom puas tuaj yeem hnov mob me ntsis yog tias cov tshuaj tiv thaiv endothermic?
A Cov tshuaj tuaj yeem hnov qhov sov me ntsis yog tias cov tshuaj tiv thaiv endothermic . Ib lub hnab txias tau txias vim qhov tshuaj tiv thaiv siv zog ntau dua li nws muab tawm.
Yuav ua li cas koj paub yog hais tias ib tug tshuaj tiv thaiv tshwm sim nyob rau hauv ib tug tshuaj sib npaug?
Peb ua tau qhia yog tias ib tshuaj tiv thaiv tau tshwm sim thaum ib lossis ntau yam hauv qab no tshwm sim: Muaj kev hloov xim sab hauv tshuaj tiv thaiv lub hwj. Ib qho roj tau tsim. Feem ntau peb paub ib qho roj tau tsim thaum peb tuaj yeem pom npuas.
Pom zoo:
Dab tsi yog tsib yam pov thawj uas koj tuaj yeem siv los txiav txim seb puas muaj tshuaj lom neeg tshwm sim?
Qee cov cim qhia txog kev hloov tshuaj lom neeg yog kev hloov xim thiab tsim cov npuas. Lub tsib yam kev hloov ntawm tshuaj lom neeg: xim chage, tsim ntawm precipitate, tsim cov roj, tsw hloov, kub hloov
Tam sim ntawd yuav siv dab tsi yog tias koj cov khaub ncaws raug hluav taws lossis yog tias muaj tshuaj lom loj tshwm sim ntawm koj cov khaub ncaws?
Tam sim ntawd yuav siv dab tsi yog tias koj cov khaub ncaws raug hluav taws lossis yog tias muaj tshuaj lom ntau tshwm sim ntawm koj cov khaub ncaws? Koj mus ncaj qha rau da dej kev nyab xeeb thiab sawb ntawm tag nrho koj cov khaub ncaws
Dab tsi yog peb qhov kev soj ntsuam uas yuav qhia tau tias muaj tshuaj lom neeg tshwm sim?
Cov hauv qab no tuaj yeem qhia tau tias kev hloov tshuaj lom neeg tau tshwm sim, txawm hais tias cov pov thawj no tsis muaj tseeb: Hloov cov ntxhiab tsw. Hloov cov xim (piv txwv li, nyiaj rau reddish-xim av thaum hlau xeb). Hloov hauv qhov kub lossis lub zog, xws li kev tsim khoom (exothermic) lossis poob (endothermic) ntawm tshav kub
Cov kev soj ntsuam soj ntsuam dab tsi qhia tias muaj kev hloov tshuaj lom neeg tshwm sim?
Kev soj ntsuam uas qhia tias muaj kev hloov pauv tshuaj muaj xws li kev hloov xim, hloov pauv kub, lub teeb muab tawm, tsim ua npuas, tsim cov nag lossis daus, thiab lwm yam
Puas muaj kev hloov pauv ntawm lub cev lossis tshuaj lom neeg thaum muaj suab thaj yaj hauv dej?
Dissolving qab zib hauv dej yog ib qho piv txwv ntawm kev hloov lub cev. Nov yog vim li cas: Kev hloov tshuaj lom neeg tsim cov khoom siv tshuaj tshiab. Txhawm rau kom qab zib hauv dej los ua cov tshuaj hloov pauv, ib yam tshiab yuav tsum tau ua. Yog tias koj evaporate cov dej los ntawm cov kua qab zib-dej, koj nyob nraum nrog qab zib