Nqe lus nug: Vim li cas cov dej khov yog suav tias yog kev hloov ntawm lub cev? Teb: Qhov no yog vim txhua yam koj ua yog hloov lub cev lub cev ntawm cov dej los ntawm cov kua rau cov khoom tab sis nws tsis hloov nws cov khoom siv tshuaj.
Vim li cas khov yog qhov hloov ntawm lub cev?
Kev khov yog hloov pauv lub cev. Nws suav nrog cov kua hloov pauv mus rau ib qho khoom. Yog li, khov ib yam tshuaj yuav tsis hloov nws tus kheej tshuaj, tab sis nws lub xeev.
Puas yog dej khov hloov tshuaj lossis hloov lub cev?
Thaum cov dej ua kua (H2O) khov rau hauv lub xeev khov (ice), nws zoo li hloov; Txawm li cas los xij, qhov kev hloov pauv no yog tsuas yog lub cev, vim tias muaj pes tsawg leeg ntawm cov molecules yog tib yam: 11.19% hydrogen thiab 88.81% oxygen los ntawm huab hwm coj.
Vim li cas thiaj khov cov qauv dej suav tias yog kev hloov lub cev?
Lub cev hloov pauv yog qhov hloov pauv ntawm qhov loj, qhov zoo, lub xeev, lossis qhov pom ntawm qhov teeb meem. Lwm hom kev hloov ntawm lub cev tshwm sim thaum teeb meem hloov ntawm ib lub xeev mus rau lwm lub xeev. Thaum dej khov thiab ua dej khov, nws tseem yog dej. Nws tsuas yog hloov nws lub xeev ntawm cov teeb meem ntawm cov kua rau ib qho khoom
Puas piv txwv ntawm kev hloov lub cev?
Lub cev hloov pauv yog cov kev hloov pauv uas cuam tshuam rau daim ntawv ntawm cov tshuaj, tab sis tsis yog nws cov tshuaj muaj pes tsawg leeg. … Piv txwv ntawm lub cev muaj xws li melting, hloov mus rau roj, hloov lub zog, hloov ntawm durability, hloov mus rau crystal form, textural hloov, zoo li, loj, xim, ntim thiab ntom.
