Video: Vim li cas cov evaporation ntawm dej yog piv txwv ntawm kev hloov lub cev?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov evaporation ntawm dej yog a hloov lub cev . Thaum twg dej evaporates , nws kev hloov los ntawm cov kua hauv lub xeev mus rau lub xeev gas, tab sis nws tseem yog dej ; nws tsis tau hloov mus rau lwm yam khoom. Rau piv txwv , hydrogen burning nyob rau hauv huab cua undergoes a tshuaj hloov nyob rau hauv uas nws yog hloov dua siab tshiab rau dej.
Ntxiv rau qhov no, vim li cas evaporation ntawm dej hloov pauv lub cev thiab tsis yog tshuaj lom neeg hloov pauv?
9 A. Evaporation ntawm dej yog a kev hloov ntawm lub cev thiab tsis yog kev hloov tshuaj vim nws yog a hloov uas ua tsis hloov cov khoom zoo li a tshuaj hloov ,ib a hloov lub cev . Plaub lub cev cov khoom uas piav txog cov kua yog thaum nws khov, boils, evaporates , los yog condenses.
Tom qab, lo lus nug yog, uas tsis yog lub cev hloov dej? Lawv kuj yog kev hloov ntawm lub cev vim lawv ua tsis hloov qhov xwm txheej. Boiling dej : Kub dej yog ib qho piv txwv ntawm a hloov lub cev thiab tsis yog kev hloov tshuaj vim cov dej vapor tseem muaj tib lub qauv molecular li kua dej (H2O).
Ntxiv mus, dab tsi lub cev khoom yog siv nyob rau hauv evaporation?
Nws yog qhov kub thiab txias uas cov khoom hloov pauv mus rau cov kua lossis cov kua hloov mus rau cov khoom. Evaporation tshwm sim thaum dej poob los ntawm ib yam khoom.
Puas yog dej evaporating ib qho tshuaj tiv thaiv?
Cov evaporation ntawm dej yog lub cev hloov . Thaum twg dej evaporates , nws hloov los ntawm cov kua hauv lub xeev mus rau lub xeev gas, tab sis nws tseem dej ; nws tsis tau hloov mus rau lwm yam khoom. Piv txwv li, hydrogen burning nyob rau hauv huab cua undergoes a tshuaj hloov nyob rau hauv uas nws yog hloov dua siab tshiab rau dej.
Pom zoo:
Yuav ua li cas hydrogen bonding ntawm cov dej molecules pab piav qhia dej lub peev xwm nqus tau ntau lub zog ua ntej evaporation?
Cov hydrogen bonds hauv dej tso cai rau nws nqus thiab tso tawm lub zog cua sov qeeb dua li ntau lwm yam khoom. Qhov kub thiab txias yog ib qho kev ntsuas ntawm qhov kev txav (kinetic zog) ntawm cov molecules. Raws li cov lus tsa suab nce, lub zog yog siab dua thiab yog li kub siab dua
Cov kev hloov ntawm lub cev txawv ntawm cov tshuaj hloov pauv li cas muab ib qho piv txwv ntawm txhua tus?
Kev hloov tshuaj lom neeg tshwm sim los ntawm cov tshuaj tiv thaiv tshuaj, thaum lub cev hloov pauv yog thaum cov teeb meem hloov pauv tab sis tsis yog tshuaj lom neeg. Piv txwv ntawm kev hloov tshuaj lom neeg yog hlawv, ua noj, xeb, thiab rotting. Piv txwv ntawm kev hloov lub cev yog boiling, melting, khov, thiab shredding
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Lub ntuj puas xiav vim dej hiav txwv los yog dej hiav txwv xiav vim lub ntuj?
'Lub hiav txwv zoo li xiav vim liab, txiv kab ntxwv thiab daj (ntev wavelength teeb) yog absorbed ntau zog los ntawm dej tshaj yog xiav (luv wavelength light). Yog li thaum lub teeb dawb ntawm lub hnub nkag mus rau hauv dej hiav txwv, nws feem ntau yog xiav uas tau rov qab los. Ib yam li ntawd, lub ntuj xiav.'
Vim li cas evaporation ntawm dej yog hloov lub cev thiab tsis hloov tshuaj?
9 A. evaporation ntawm dej yog ib qho kev hloov ntawm lub cev thiab tsis yog tshuaj hloov vim nws yog ib qho kev hloov uas tsis hloov cov tshuaj xws li tshuaj hloov pauv, tsuas yog hloov lub cev. Plaub lub cev uas piav txog cov kua yog thaum nws khov, boils, evaporates, los yog condenses