Cov txheej txheem:

Dab tsi yog peb qhov kev soj ntsuam uas yuav qhia tau tias muaj tshuaj lom neeg tshwm sim?
Dab tsi yog peb qhov kev soj ntsuam uas yuav qhia tau tias muaj tshuaj lom neeg tshwm sim?

Video: Dab tsi yog peb qhov kev soj ntsuam uas yuav qhia tau tias muaj tshuaj lom neeg tshwm sim?

Video: Dab tsi yog peb qhov kev soj ntsuam uas yuav qhia tau tias muaj tshuaj lom neeg tshwm sim?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
Anonim

Hauv qab no tuaj yeem qhia tias a tshuaj hloov tau tshwm sim , txawm hais tias qhov pov thawj no tsis yog qhov 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.

Ua raws li qhov no hauv kev xav, dab tsi yog 3 lub cim qhia tias muaj kev hloov tshuaj lom neeg?

Yog; cov khoom tshiab tsim, raws li pov thawj los ntawm cov xim hloov thiab npuas. Qee cov cim qhia txog kev hloov tshuaj lom neeg yog kev hloov hauv xim thiab tsim cov npuas. Tsib yam xwm txheej ntawm kev hloov tshuaj lom neeg: xim chage, tsim ntawm precipitate, tsim ntawm ib tug gas, tsw hloov, kub hloov.

Tsis tas li ntawd, ob txoj hauv kev uas koj paub tias muaj tshuaj lom neeg muaj tshwm sim? Paub txog tshuaj lom neeg

  • Kev hloov xim tshwm sim thaum lub sijhawm cov tshuaj tiv thaiv.
  • Cov roj yog tsim thaum lub sij hawm cov tshuaj tiv thaiv.
  • Ib yam khoom uas hu ua precipitate yog tsim nyob rau hauv cov tshuaj tiv thaiv.
  • Ib qho kev hloov ntawm lub zog tshwm sim los ntawm cov tshuaj tiv thaiv.

Tom qab ntawd, lo lus nug yog, kev soj ntsuam dab tsi tuaj yeem ua tau uas qhia tau tias muaj tshuaj lom neeg tshwm sim?

Xya yam uas qhia tias muaj kev hloov tshuaj lom neeg tshwm sim

  • Gas npuas tshwm. Gas npuas tshwm tom qab muaj tshuaj lom neeg cov tshuaj tiv thaiv tau tshwm sim thiab cov sib tov ua saturated nrog roj.
  • Tsim ib tug Precipitate.
  • Xim hloov.
  • Kub Hloov.
  • Kev tsim lub teeb.
  • Hloov ntim.
  • Hloov hauv tsw lossis saj.

Dab tsi yog 6 cov cim qhia ntawm cov tshuaj tiv thaiv tshuaj?

Cov cim thiab cov pov thawj

  • tsw.
  • Lub zog hloov.
  • Gas npuas.
  • Precipitate tsim.
  • Xim hloov.

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