Qhov sib txawv tseem ceeb ntawm cov cua sov ntawm fusion thiab crystallization yog qhov kub ntawm fusion yog hais txog kev hloov pauv ntawm lub zog thaum lub zog ntawm ib qho khoom hloov mus rau hauv cov kua hauv lub xeev thaum tshav kub ntawm crystallization yog hais txog cov cua sov uas yog absorbed. los yog hloov zuj zus thaum ib qho mole ntawm ib qho khoom siv tau dhau los ua crystallization.
tshuaj lom neeg tshwm sim feem ntau ntawm kev nqus lossis tso tawm lub zog. Ntawm no, lub zog yog evolved los yog absorbed tsuas yog nyob rau hauv daim ntawv ntawm tshav kub. Yog li ntawd, qhov kev hloov ntawm lub zog rau ib qho tshuaj tiv thaiv tuaj yeem raug hu ua cua sov ntawm cov tshuaj tiv thaiv los yog raws li enthalpy ntawm cov tshuaj tiv thaiv.
Kub Fusion yog dab tsi?
Lub tshav kub ntawm fusion los yog enthalpy ntawm fusion yog lub zog uas hloov thaum lub sij hawm hloov dua siab tshiab ntawm ib yam khoom theem ntawm solid-state mus rau lub xeev ua kua. Feem ntau, lub zog hloov pauv tshwm sim nyob rau hauv daim ntawv ntawm tshav kub, thiab cov tshuaj tiv thaiv yuav tsum tshwm sim nyob rau hauv ib tug tas mus li siab nyob rau hauv thiaj li yuav txhais tau ib tug zoo cua sov ntawm fusion. Lub tshav kub ntawm solidification yog qhov sib npaug thiab rov qab lub sij hawm rau cov cua sov ntawm fusion.
Lub tshav kub ntawm fusion yog txhais rau lub melting ntawm ib yam khoom. Lub zog hloov pauv no yog lub npe hu ua cua sov latent vim tias qhov kub thiab txias nyob tas li thaum lub sij hawm hloov dua siab tshiab. Yog tias peb xav txog qhov hloov pauv ntawm lub zog ib qho ntawm cov khoom hauv moles, ces lub sijhawm rau cov txheej txheem no tuaj yeem muab tau raws li molar heat of fusion.
Feem ntau, cov kua theem ntawm cov khoom muaj lub zog sab hauv piv rau nws cov theem khoom vim nws lub zog kinetic siab dua li lub zog muaj peev xwm. Yog li ntawd, peb yuav tsum tau muab qee lub zog rau cov khoom kom yaj nws. Hauv qhov sib piv, ib yam khoom tso tawm lub zog thaum cov kua ua kua los yog khov. Qhov no feem ntau yog vim cov molecules nyob rau hauv cov kua ua tsis muaj zog intermolecular kev sib tshuam ntau tshaj li cov molecules nyob rau hauv cov khoom theem.
Kub ntawm Crystallization yog dab tsi?
Lub tshav kub ntawm crystallization lossis enthalpy ntawm crystallization yog lub zog uas hloov thaum lub sij hawm crystallization ntawm ib yam khoom. Crystallization yuav tshwm sim raws li cov txheej txheem ntuj lossis raws li txheej txheem tsim khoom. 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. Crystal tuaj yeem tsim ntau txoj hauv kev xws li nag lossis daus los ntawm kev daws teeb meem, khov, tso ncaj qha los ntawm cov roj (tsis tshua muaj), thiab lwm yam.
Muaj ob theem tseem ceeb ntawm crystallization: nucleation (qib crystalline tshwm nyob rau hauv cov kua supercooled los yog cov kuab tshuaj supersaturated), thiab siv lead ua kev loj hlob (qhov nce ntawm qhov loj ntawm cov khoom thiab ua rau lub xeev crystal).
Qhov txawv ntawm Qhov Kub ntawm Fusion thiab Crystallization yog dab tsi?
Ib tshuaj tiv thaiv tshwm sim los ntawm kev nqus lossis hloov pauv lub zog hauv daim ntawv kub. Lub tshav kub ntawm fusion thiab kub ntawm crystallization yog ob qho piv txwv ntawm hom kev tshwm sim no. Thiab, qhov sib txawv tseem ceeb ntawm cov cua sov ntawm fusion thiab crystallization yog qhov kub ntawm fusion yog hais txog kev hloov pauv ntawm lub zog thaum lub zog-lub xeev ntawm ib yam khoom hloov mus rau hauv cov kua hauv lub xeev thaum tshav kub ntawm crystallization hais txog cov cua sov uas yog absorbed los yog hloov zuj zus. Thaum ib tug mole ntawm ib tug muab tshuaj undergoes crystallization.
Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm qhov kub ntawm fusion thiab crystallization.
Summary – Kub ntawm Fusion vs Crystallization
Ib tshuaj tiv thaiv tshwm sim los ntawm kev nqus lossis hloov pauv lub zog hauv daim ntawv kub. Lub tshav kub ntawm fusion thiab kub ntawm crystallization yog ob qho piv txwv ntawm hom kev tshwm sim no. Qhov sib txawv tseem ceeb ntawm cov cua sov ntawm fusion thiab crystallization yog tias cov cua sov ntawm fusion yog hais txog qhov kev hloov ntawm lub zog thaum lub zog-lub xeev ntawm ib yam khoom hloov mus rau hauv cov kua hauv lub xeev thaum tshav kub ntawm crystallization yog hais txog cov cua sov uas yog absorbed los yog hloov zuj zus thaum ib tug. mole ntawm ib tug muab tshuaj mus crystallization.
