Qhov sib txawv tseem ceeb ntawm fusion thiab vaporization yog tias fusion yog hloov pauv ntawm cov khoom rau hauv cov kua, whereas vaporization yog hloov cov kua rau hauv nws cov vapor.
Lo lus fusion muaj ntau lub ntsiab lus sib txawv, tab sis nyob rau hauv lub cev chemistry, peb siv nws los piav txog cov txheej txheem ntawm melting. Qhov ntawd yog; fusion yog hloov dua siab tshiab ntawm ib theem khoom mus rau hauv nws cov kua theem. Ntawm qhov tod tes, hloov dua siab tshiab ntawm cov kua rau hauv nws cov khoom yog hu ua khov los yog solidification. Yog hais tias cov kua theem ntawm cov khoom hloov mus rau hauv lub gaseous theem, ces peb hu nws vaporization. Ntxiv mus, lub zog xav tau rau txhua qhov kev hloov pauv yog hu ua "kub ntawm fusion" thiab "kub ntawm vaporization".
Fusion yog dab tsi?
Fusion yog txheej txheem ntawm melting qhov twg cov theem khoom hloov mus rau hauv nws cov kua theem. Yog li ntawd, lo lus no yog hais txog ib theem kev hloov. Nws tshwm sim ntawm lub melting point ntawm cov khoom. Lub zog xav tau rau cov txheej txheem no yog hu ua "heat of fusion". Thaum lub sij hawm fusion, lub entropy ntawm lub kaw lus nce vim hais tias cov khoom uas nyob rau hauv qhov chaw ruaj khov yuav tau txais lub caij nyoog txav mus rau hauv cov kua theem (qhov no nce qhov randomness, nce lub entropy).
Daim duab 01: Theem Hloov Hauv Dej
Qhov kub ntawm fusion lossis enthalpy ntawm fusion yog qhov hloov ntawm enthalpy. Muab lub zog cua sov rau ib yam khoom los hloov nws theem los ntawm cov theem khoom mus rau theem ua kua ntawm lub siab tas li ua rau muaj kev hloov pauv hauv enthalpy. Lub enthalpy ntawm solidification yog qhov opposite phenomena, thiab nws muaj tib tus nqi rau qhov yuav tsum tau ntawm lub zog. Qhov tseeb, Heat of Fusion=Kub Zog / Mass
Vaporization yog dab tsi?
Vaporization yog txheej txheem ntawm kev hloov pauv ntawm cov theem ua kua rau hauv nws theem vapor. Lub entropy ntawm qhov system nce ntau dua vim hais tias cov khoom hauv cov kua theem tau txais lub peev xwm txav mus los ntawm lub vapor theem. Thaum tshav kub kub ntawm vaporization lossis enthalpy ntawm vaporization yog qhov hloov pauv hauv enthalpy thaum cov kua hloov mus rau hauv nws cov vapor thiab qhov no yog qhov ua haujlwm ntawm lub siab.
Daim duab 02: Dej Vapor Condenses rau tsim huab thaum lub voj voog dej
Vaporization tuaj yeem tshwm sim hauv ob txoj hauv kev loj:
evaporation
Evaporation tshwm sim ntawm cov kua dej. Nws tshwm sim ntawm qhov kub thiab txias hauv qab qhov kub ntawm cov kua ntawm tib lub siab. Ntxiv mus, nws tshwm sim tsuas yog thaum qhov ib nrab vapor siab tsawg dua qhov sib npaug vapor siab.
Boiling
Boiling yog qhov tsim ntawm vapor li npuas hauv cov kua. Tsis zoo li vaporization, cov ntaub ntawv boiling vapor hauv qab ntawm cov kua. Nws tshwm sim thaum lub equilibrium vapor siab sib npaug los yog siab dua ib puag ncig siab.
Qhov txawv ntawm Fusion thiab Vaporization yog dab tsi?
Fusion yog lwm lub sijhawm rau cov txheej txheem ntawm melting. Vaporization yog txheej txheem ntawm kev tsim cov vapor los ntawm cov kua, uas tuaj yeem tshwm sim hauv ob txoj hauv kev: evaporation thiab boiling. Qhov sib txawv tseem ceeb ntawm fusion thiab vaporization yog tias fusion yog kev hloov pauv ntawm cov khoom mus rau hauv cov kua, hos vaporization yog hloov ntawm cov kua rau hauv nws cov vapor. Thaum xav txog qhov kev hloov pauv hauv enthalpy, peb hu rau qhov kev hloov pauv hauv enthalpy thaum lub sij hawm fusion txheej txheem raws li qhov kub ntawm fusion thaum qhov kev hloov ntawm enthalpy thaum lub sij hawm vaporization yog lub tshav kub ntawm vaporization.
Summary – Fusion vs Vaporization
Fusion thiab vaporization yog ob lub ntsiab lus tseem ceeb tshuaj uas piav txog ob theem kev hloov pauv. Qhov sib txawv tseem ceeb ntawm fusion thiab vaporization yog tias fusion yog kev hloov pauv ntawm cov khoom mus rau hauv cov kua, whereas vaporization yog hloov cov kua rau hauv nws cov vapor.
