Qhov sib txawv tseem ceeb ntawm evaporation thiab crystallization yog tias evaporation yog qhov tsim ntawm vapor los ntawm cov kua, whereas crystallization yog tsim cov khoom muaju los ntawm cov kua.
Evaporation thiab crystallization yog cov txheej txheem ntawm lub cev uas sib txawv ntawm ib leeg. Evaporation yog lub cev txheej txheem ntawm kev hloov pauv ntawm cov kua rau hauv nws cov theem gaseous ntawm qhov kub thiab txias. Crystallization yog lub cev txheej txheem ntawm kev tsim cov muaju. Tej zaum nws yuav tshwm sim raws li tus txheej txheem ntuj lossis raws li txheej txheem tsim khoom.
Evaporation yog dab tsi?
Evaporation yog lub cev txheej txheem ntawm kev hloov pauv ntawm cov kua rau hauv nws cov theem gaseous ntawm qhov kub thiab txias. Nws feem ntau yog qis dua qhov kub ntawm cov kua. Cov molecules hauv cov kua muaj qhov sib txawv rau lub zog kinetic. Thaum peb muab lub zog los ntawm sab nraud mus rau cov kua (xws li cua sov), lub zog kinetic ntawm cov kua molecules nce. Thaum lub zog txaus rau cov molecules ntawm qhov chaw kom kov yeej lub zog ntawm lub cev ntawm lawv, cov molecules zoo li khiav tawm ntawm qhov chaw thiab hloov mus rau hauv lub xeev roj.
Daim duab 01: Evaporation
Txawm li cas los xij, qee qhov ntawm cov molecules uas nkag mus rau theem roj los ntawm evaporation tuaj yeem rov ua kua los ntawm condensation. Qhov no ua rau muaj kev sib npaug ntawm tus nqi evaporation thiab tus nqi condensation. Ntxiv mus, tas li vapor siab yog tsim nyob rau hauv theem no. Yog tias peb nce qhov kub ntawm cov kua ntawm lub sijhawm no, nws ua rau qhov nce ntawm cov evaporation txij li lub zog kinetic ntawm cov molecules nce. Yog li ntawd, tus nqi ntawm cov molecules nyob qhov chaw saum cov kua nce.
Crystallization yog dab tsi?
Crystalization yog lub cev txheej txheem ntawm kev tsim cov muaju. Tej zaum nws yuav tshwm sim raws li ib tug txheej txheem ntuj los yog raws li ib tug txheej txheem dag. Nyob rau hauv cov khoom theem ntawm ib yam khoom, cov molecules los yog atoms yog heev koom nyob rau hauv ib tug crystalline qauv. Peb hu qhov no ib tug qauv siv lead ua. Lub crystal tuaj yeem tsim nyob rau hauv ntau txoj kev, xws li nag lossis daus los ntawm kev daws, khov, tso ncaj qha los ntawm cov pa roj (tsis tshua muaj), thiab lwm yam. Cov cua sov ntawm crystallization lossis enthalpy ntawm crystallization yog lub zog hloov thaum lub sij hawm crystallization ntawm ib yam khoom.
Daim duab 02: Crystallization ntawm Sodium Acetate
Nws muaj ob kauj ruam tseem ceeb ntawm crystallization: nucleation (qib crystalline tshwm nyob rau hauv cov kua supercooled los yog cov kuab tshuaj supersaturated) thiab siv lead ua loj hlob los yog particle loj hlob (qhov nce ntawm qhov loj ntawm cov khoom thiab ua rau lub xeev crystal).
Qhov txawv ntawm evaporation thiab crystallization yog dab tsi?
Evaporation thiab crystallization yog cov txheej txheem ntawm lub cev uas sib txawv rau ib leeg. Qhov sib txawv tseem ceeb ntawm evaporation thiab crystallization yog tias evaporation yog tsim ntawm vapor los ntawm cov kua, whereas crystallization yog tsim ntawm cov khoom muaju los ntawm cov kua. Tsis tas li ntawd, evaporation tuaj yeem tshem tawm cov tshuaj tsis haum ntau dua los ntawm cov kua sib tov, qhov crystallization tuaj yeem tshem tawm cov khoom ntawm cov kua.
Cov hauv qab no infographic teev qhov sib txawv ntawm evaporation thiab crystallization hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Evaporation vs Crystallization
Evaporation thiab crystallization yog cov txheej txheem ntawm lub cev uas sib txawv rau ib leeg. Evaporation yog hloov dua siab tshiab ntawm cov kua mus rau hauv nws lub gaseous theem ntawm ib tug tej yam kub kub. Crystallization yog tsim ntawm cov muaju thiab tej zaum yuav tshwm sim raws li ib tug natural txheej txheem los yog raws li ib tug txheej txheem dag. Qhov sib txawv tseem ceeb ntawm evaporation thiab crystallization yog tias evaporation yog tsim ntawm vapor los ntawm cov kua, whereas crystallization yog tsim ntawm cov khoom muaju los ntawm cov kua.
