Dab tsi yog tsim thaum ntsev yaj hauv dej?
Dab tsi yog tsim thaum ntsev yaj hauv dej?

Video: Dab tsi yog tsim thaum ntsev yaj hauv dej?

Video: Dab tsi yog tsim thaum ntsev yaj hauv dej?
Video: yog hmoov dab tsi. Zoo Xyooj (cover) 2024, Kaum ib hlis
Anonim

Thaum lub rooj ntsev , sodium chloride, dissolves nyob rau hauv dej , nws dissociates rau hauv nws cov cations thiab anions, Na+ thiab Cl-. Ionic tebchaw xws li sodium chloride, uas yaj hauv dej thiab dissociate rau daim ntawv ions, hu ua electrolytes. Thov Saib cov animation 10.3 ntawm kev daws teeb meem ionic.

Tib neeg kuj nug, ua li cas thaum ntsev yaj hauv dej?

Thaum twg ntsev yog tov nrog dej , cov ntsev dissolves vim covalent bonds ntawm dej muaj zog tshaj cov ionic bonds nyob rau hauv lub ntsev molecules. Dej molecules rub cov sodium thiab chloride ions sib nrug, rhuav tshem cov ionic daim ntawv cog lus uas tuav lawv ua ke.

Ib yam li ntawd, vim li cas ntsev thiaj tsis yaj hauv dej? Ntxiv ntsev raws li tus solute rau dej (solvent) at cov dej freezing kub disrupts lub equilibrium ntawm dej . Ntsev molecules sib tw nrog thiab tshem tawm dej molecules, tab sis yuav tua cov dej khov uas yog tsim nyob rau hauv no juncture. Cov ntsev nce lub melting point ntawm dej , lub ntsiab lus ntsev slows cov dej khov melting.

Ua raws li qhov no hauv kev xav, thaum ntsev yaj hauv dej hom tshuaj dab tsi tsim?

Teb: Thaum twg Ntsev dissolves hauv dej ib homogeneous sib tov yog tsim , vim hais tias sib txawv Cheebtsam yog sib tov tusyees nyob rau hauv lub yam khoom.

Yuav ua li cas yaj ntsev hauv dej sai sai?

Ntxiv txias dej mus rau ib qho (xws li dej khov dej , los yog dej los ntawm lub tub yees), ntxiv chav sov dej mus rau qhov thib ob, thiab ntxiv kub dej mus rau peb. Tom qab ntawd, ntxiv 1 teaspoon ntawm ntsev rau txhua lub khob tib lub sijhawm, thiab lub sijhawm ntev npaum li cas nws yuav siv sijhawm ntev npaum li cas yaj.

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