A tshuaj hloov pauv los ntawm cov tshuaj tiv thaiv tshuaj, thaum lub cev hloov pauv yog thaum muaj teeb meem hloov pauv tab sis tsis yog tshuaj lom neeg. Piv txwv ntawm cov tshuaj hloov pauv yog hlawv, ua noj, xeb, thiab rotting. Piv txwv ntawm kev hloov ntawm lub cev yog boiling, melting, khov, thiab shredding.
Kev hloov tshuaj lom neeg thiab hloov lub cev yog dab tsi?
Nyob rau hauv lub cev hloov qhov tsos lossis daim ntawv ntawm cov teeb meem hloov tab sis hom teeb meem hauv cov khoom tsis. Txawm li cas los xij hauv cov tshuaj hloov pauv, hom teeb meem hloov pauv thiab tsawg kawg ib yam tshiab nrog cov khoom tshiab yog tsim. Qhov sib txawv ntawm lub cev thiab tshuaj hloov pauv tsis pom tseeb txiav.
piv txwv ntawm kev hloov tshuaj thiab lub cev yog dab tsi?
Piv txwv ntawm kev hloov lub cev muaj xws li, txiav ntawv, yaj butter, yaj ntsev hauv dej, thiab tawg iav. Ib qho tshuaj hloov pauv tshwm sim thaum muaj teeb meem hloov mus rau ib lossis ntau hom teeb meem. Piv txwv ntawm kev hloov tshuaj muaj xws li, rusting, hluav taws, thiab overcooking.
3 qhov sib txawv ntawm lub cev thiab tshuaj hloov pauv li cas?
Kev hloov lub cev yog qhov hloov pauv ib ntus. Kev hloov tshuaj lom neeg yog kev hloov mus tas li. … Qee qhov piv txwv ntawm kev hloov ntawm lub cev yog khov dej, melting of wax, boiling of water, etc. Ob peb piv txwv ntawm kev hloov tshuaj yog zom zaub mov, hlawv cov thee, xeb, thiab lwm yam.
5 piv txwv ntawm kev hloov tshuaj lom neeg yog dab tsi?
20Piv txwv ntawm Chemical Change
- xeb hlau thaum muaj dej noo thiab oxygen.
- Kub ntoo.
- Mis ua curd.
- Tsim cov caramel los ntawm qab zib los ntawm cua sov.
- Baking of cookies and cakes.
- ua zaub mov.
- Acid-base reaction.
- Kev zom zaub mov.
