Qhov sib txawv tseem ceeb ntawm latent cua sov ntawm fusion thiab solidification yog tias latent cua sov ntawm fusion yog cov cua sov uas yuav tsum tau hloov ib theem khoom rau hauv cov kua theem ntawm tib yam khoom, whereas latent tshav kub ntawm solidification yog tus nqi ntawm Thaum tshav kub kub yuav tsum tau hloov cov theem ntawm cov khoom los ntawm cov kua theem mus rau theem khoom.
Cov cua sov tsis txaus ntawm fusion thiab solidification yog ob qhov txiaj ntsig enthalpy uas tuaj nyob rau hauv subtopic "latent heat" hauv thermodynamics. Lub latent cua sov tseem hu ua lub zog latent lossis kub ntawm kev hloov pauv. Lo lus no yog hais txog tus nqi ntawm cov cua sov uas tau tso tawm los yog nqus los ntawm lub thermodynamic system thaum lub sij hawm tus txheej txheem uas tshwm sim ntawm qhov kub thiab txias. Feem ntau, cov txheej txheem tshuaj tiv thaiv no yog thawj theem kev hloov pauv.
Cov cua sov tsis txaus muab lub zog zais rau hauv cov khoom uas tuaj yeem muab rho tawm ntawm cov khoom ntawd thaum nws hloov nws theem ntawm cov teeb meem ntawm qhov kub thiab txias. Qee qhov piv txwv uas poob rau hauv lub tshav kub latent muaj xws li latent cua sov ntawm fusion, latent cua sov ntawm vaporization, latent tshav kub ntawm solidification, thiab latent tshav kub ntawm crystallization.
Dab tsi yog Latent Kub ntawm Fusion?
Latent cua sov ntawm fusion yog tus nqi ntawm cov cua sov uas yuav tsum tau hloov nws cov theem los ntawm cov theem khoom mus rau cov kua theem ntawm qhov kub thiab txias, denoted los ntawm Hf. Nyob rau hauv lwm yam lus, ib chav tsev loj ntawm ib yam khoom yuav tsum tau tshav kub zog uas yog sib npaug zos rau lub latent tshav kub ntawm fusion (ntawm tej yam khoom no) ntawm nws melting point thiaj li yuav hloov mus rau hauv nws cov kua theem. Fusion yog melting los yog liquefying ib qho khoom los ntawm kev muab cua sov. Cov khoom sib txawv muaj cov ntsiab lus sib txawv; Yog li, qhov sib txawv ntawm Hf.
Sib npaug ntawm Latent Kub ntawm Fusion
Qhov sib npaug rau Hf yog raws li hauv qab no:
Hf=ΔQf/ m
Ntawm no, ΔQf yog qhov hloov pauv ntawm lub zog ntawm cov khoom, thiab m yog qhov loj ntawm cov khoom.
Dab tsi yog qhov kub ntawm qhov sib txawv?
Latent heat of solidification yog cov cua sov uas cov khoom siv yuav tsum tau hloov nws theem ntawm cov kua theem mus rau cov khoom ntawm qhov kub thiab txias. Peb tuaj yeem txheeb xyuas qhov ntsuas kub latent los ntawm Hs. Feem ntau, cov molecules nyob rau hauv cov kua theem ntawm ib yam khoom muaj siab zog sab hauv piv rau cov khoom theem ntawm tib yam khoom. Yog li ntawd, raws li cov txheej txheem solidification, lub zog tawm los ntawm cov tshuaj tiv thaiv sib tov.
Daim duab 01: Latent Heat Values for Water
Dab tsi yog qhov txawv ntawm qhov kub thiab txias ntawm Fusion thiab Solidification?
Qhov sib txawv tseem ceeb ntawm latent cua sov ntawm fusion thiab solidification yog tias latent cua sov ntawm fusion yog cov cua sov uas yuav tsum tau hloov ib theem khoom rau hauv cov kua theem ntawm tib yam khoom, whereas latent tshav kub ntawm solidification yog tus nqi ntawm Thaum tshav kub kub yuav tsum tau hloov cov theem ntawm cov khoom los ntawm cov kua theem mus rau theem khoom. Yog li ntawd, latent cua sov ntawm fusion cuam tshuam nrog kev hloov pauv ntawm cov theem khoom mus rau nws cov theem ua kua, whereas latent cua sov ntawm solidification yuav hloov dua siab tshiab ntawm cov kua theem rau nws cov khoom theem.
Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov kub thiab txias ntawm fusion thiab solidification hauv daim ntawv tabular rau ib sab ntawm kev sib piv.
Summary – Latent Kub ntawm Fusion vs Solidification
Latent cua sov ntawm fusion thiab latent tshav kub ntawm solidification yog opposite ntawm ib leeg nyob rau hauv cov nqe lus ntawm theem hloov. Qhov sib txawv tseem ceeb ntawm latent cua sov ntawm fusion thiab solidification yog tias latent cua sov ntawm fusion yog cov cua sov uas yuav tsum tau hloov cov theem khoom mus rau hauv cov kua theem ntawm tib yam khoom, whereas latent tshav kub ntawm solidification yog tus nqi ntawm cov cua sov yuav tsum tau hloov lub theem ntawm cov khoom los ntawm cov kua theem mus rau theem khoom.
