Evaporation vs Condensation
Condensation thiab evaporation yog ob qho xwm txheej tseem ceeb uas peb ntsib hauv peb lub neej niaj hnub. Cov xwm txheej xws li huab cua nag, cov dej ntws nyob ib puag ncig cov dej txias tuaj yeem piav qhia siv cov xwm txheej no. Evaporation thiab condensation muaj ntau yam kev siv hauv kev lag luam xws li tshuaj ntsuam chemistry, industrial chemistry, txheej txheem engineering, thermodynamics thiab txawm tias kev kho mob sciences. Nws yog ib qho tseem ceeb kom muaj kev nkag siab zoo hauv cov xwm txheej no kom muaj kev nkag siab zoo hauv lawv cov ntawv thov. Hauv tsab xov xwm no, peb yuav tham txog dab tsi evaporation thiab condensation yog, lawv cov ntsiab lus, kev siv ntawm ob qhov tshwm sim, qhov zoo sib xws ntawm ob qho no thiab thaum kawg qhov sib txawv ntawm condensation thiab evaporation.
Dab tsi yog Condensation?
Condensation yog qhov hloov pauv ntawm lub cev lub cev ntawm cov teeb meem los ntawm theem gaseous mus rau theem ua kua. Cov txheej txheem rov qab ntawm condensation yog hu ua vaporization. Condensation tuaj yeem tshwm sim vim muaj ntau yam. Yuav tsum muaj kev nkag siab zoo nyob rau hauv saturated vapor, kom muaj kev nkag siab meej ntawm condensation. Ib tug kua nyob rau hauv tej qhov kub thiab txias yog evaporated. Txawm li cas los xij, thaum cov kua tau rhuab tshaj qhov kub ntawm cov kua, cov txheej txheem boiling pib. Thaum lub tshav kub tau muab rau lub sijhawm txaus, tag nrho cov kua yuav evaporate. Lub vapor tam sim no yog ib qho roj. Qhov kub ntawm cov pa roj no yuav tsum siab tshaj qhov kub ntawm cov kua hauv qhov system lub siab. Yog hais tias qhov kub ntawm qhov system poob qis dua qhov kub ntawm qhov kub, cov vapor pib tig mus rau hauv cov kua dej dua. Qhov no yog hu ua condensation. Lwm txoj kev ntawm condensation yog ua kom qhov kub thiab txias tsis tu ncua thiab ua kom lub siab ntawm lub cev. Qhov no yuav ua rau qhov tseeb qhov kub hnyiab tau nce, thiab lub vapor yuav tsum condensed. Tam sim ntawd poob rau hauv qhov kub thiab txias tuaj yeem ua rau condensation. Dew tsim nyob ib ncig ntawm cov dej txias yog qhov tshwm sim.
Evaporation yog dab tsi?
Evaporation yog theem hloov ntawm cov kua rau hauv lub xeev roj. Evaporation yog ib qho ntawm ob hom vaporization. Lwm daim ntawv ntawm vaporization yog boiling. Evaporation tshwm sim tsuas yog nyob rau saum npoo ntawm cov kua. Thaum lub zog ntawm cov kua molecule saum npoo av yog nce vim yog ib qho kev sab hauv lossis sab nraud, cov molecule yuav tuaj yeem rhuav tshem cov ntawv cog lus ua haujlwm rau nws, yog li tsim cov roj molecule. Cov txheej txheem no tuaj yeem tshwm sim yog qhov kub thiab txias. Cov peev txheej ntau rau evaporation zog yog lub hnub ci, cua lossis qhov kub ntawm ib puag ncig. Tus nqi ntawm evaporation ntawm cov kua yog nyob ntawm cov khoom sab nraud thiab qee yam hauv cov kua. Internal yam xws li thaj tsam ntawm cov kua, intermolecular daim ntawv cog lus lub zog ntawm cov kua thiab cov txheeb ze molecular loj ntawm cov khoom cuam tshuam lub evaporation ntawm cov kua.
Qhov txawv ntawm Evaporation thiab Condensation yog dab tsi?
• Hauv condensation, cov roj molecules tso tawm lub zog rau ib puag ncig thiab ua kua molecules. Hauv evaporation, cov kua molecules nqus lub zog los ntawm ib puag ncig los ua cov roj molecules.
• Evaporation thiab condensation yog ob qho tib si tshwm sim hauv cov kua dej ntuj. Yog hais tias tus nqi ntawm evaporation ntau dua tus nqi ntawm condensation, net evaporation yog pom, thiab cov kua kom muaj nuj nqis yog txo thiab vice versa.
