Qhov txawv ntawm Boiling Point thiab Melting Point

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Qhov txawv ntawm Boiling Point thiab Melting Point
Qhov txawv ntawm Boiling Point thiab Melting Point

Video: Qhov txawv ntawm Boiling Point thiab Melting Point

Video: Qhov txawv ntawm Boiling Point thiab Melting Point
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Qhov sib txawv tseem ceeb ntawm qhov kub ntawm qhov kub thiab txias yog qhov kub ntawm qhov kub ntawm lub xeev cov kua hloov mus rau nws lub xeev gaseous whereas melting point yog qhov kub thiab txias uas lub xeev hloov mus rau hauv lub xeev ua kua.

Muaj peb lub xeev ntawm cov teeb meem: lub xeev khov, lub xeev ua kua thiab lub xeev gaseous. Cov tshuaj tuaj yeem hloov ntawm ib lub xeev mus rau lwm qhov yog tias peb hloov qhov kub ntawm cov khoom ntawd. Thaum cua sov, feem ntau yog ib qho khoom hloov mus rau hauv nws lub xeev ua kua; thiab tom qab cua sov ntxiv, nws hloov mus rau hauv nws lub xeev gaseous. Nyob rau hauv sib piv, yog hais tias peb txias ib tug gaseous compound, nws hloov mus rau hauv lub xeev cov kua, ua raws li los ntawm ib tug khoom lub xeev raws li ib tug ntxiv txias. Txawm li cas los xij, muaj qee yam khoom uas tuaj yeem ncaj qha mus rau lub xeev gaseous yam tsis tau mus rau hauv lub xeev ua kua (peb hu ua sublimation), thiab vice versa.

Dab tsi yog Boiling Point?

Boiling point yog cov khoom ntawm cov kua. Lub boiling point yog qhov kub ntawm lub vapor siab ntawm cov kua yog sib npaug zos rau sab nraud siab ntawm cov kua. Kev kub siab yog ib qho tseem ceeb uas cuam tshuam rau qhov kub kub; siab dua lub siab sab nraud ntawm ib yam khoom, siab dua qhov boiling point. Yog li, qhov no yog qhov yooj yim txoj kev xav tom qab lub siab cookers. Lub tshuab hluav taws xob siab yog lub tshuab hluav taws xob uas tso cov vapor los ntawm cov dej kub hauv nws. Qhov siab ntawm vapor nyob rau hauv lub thawv ua rau sab nraud siab ntawm cov kua ntau dua. Yog li ntawd, qhov kev kub siab no ua rau muaj qhov kub siab dua. Tsis tas li ntawd, qhov kev xav no tseem ceeb heev, tshwj xeeb tshaj yog nyob rau hauv qhov siab dua. Feem ntau, dej boils ntawm 1000C. Txij li thaum lub atmospheric siab qis dua ntawm qhov siab dua, dej yuav boil ntawm 80 0 C - 90 0 C. Thiab, qhov no yuav ua rau cov zaub mov tsis qab.

Qhov txawv ntawm Boiling Point thiab Melting Point
Qhov txawv ntawm Boiling Point thiab Melting Point

Daim duab 01: Dej Boiling Point

Ib lub kua boils thaum nws tshaj nws qhov kub thiab txias ntawm qhov sib thooj saturation siab. Qhov ntsuas kub saturation yog qhov kub sib xws rau lub zog thermal siab tshaj plaws uas cov kua tuaj yeem tuav tsis tau hloov nws lub xeev mus rau vapor ntawm lub siab muab. Qhov kub thiab txias saturation kuj sib npaug rau lub boiling point ntawm cov kua. Boiling tshwm sim thaum lub thermal zog ntawm cov kua yog txaus los rhuav tshem cov intermolecular bonds. Lub boiling point ib txwm yog qhov kub thiab txias ntawm atmospheric siab. Ntxiv mus, lub boiling point tsuas yog sib txawv ntawm lub triple point thiab tseem ceeb point ntawm cov kua.

Lub ntsiab lus melting yog dab tsi?

Melting point yog ib yam khoom ntawm cov khoom. Lub melting point yog qhov kub thiab txias uas cov khoom hloov mus ua kua. Ntau qhov tseeb, lub melting point yog qhov kub thiab txias thaum lub xeev cov kua thiab cov khoom nyob rau hauv thermal equilibrium nrog ib leeg.

Qhov tseem ceeb sib txawv - Boiling Point vs Melting Point
Qhov tseem ceeb sib txawv - Boiling Point vs Melting Point

Daim duab 2: Melting Ice

Lub melting point thiab qhov khov ntawm ib yam khoom yuav tsis zoo ib yam. Piv txwv li, agar melts ntawm 85 0 C, tab sis nws rov qab ntawm 31 0 C rau 40 0 C. Intermolecular bonds thiab molecular hnyav feem ntau txhais cov ntsiab lus melting. Qee cov khoom zoo li iav tsis muaj qhov tshwj xeeb melting point. Lawv tsuas yog hloov pauv ntawm cov khoom mus rau cov kua.

Qhov txawv ntawm Boiling Point thiab Melting Point yog dab tsi?

Boiling point thiab melting point yog cov khoom ntawm cov khoom. Qhov sib txawv tseem ceeb ntawm qhov kub thiab txias yog qhov kub ntawm qhov kub ntawm lub xeev cov kua hloov mus rau nws lub xeev gaseous whereas melting point yog qhov kub thiab txias uas lub xeev hloov mus rau hauv lub xeev ua kua. Yog li ntawd, lub boiling point yog txhais rau lub xeev cov kua thaum lub melting point yog txhais rau ib tug khoom lub xeev.

Cov ntaub ntawv hauv qab no-daim duab nthuav qhia ntxiv txog qhov sib txawv ntawm qhov kub thiab txias point.

Qhov sib txawv ntawm Boiling Point thiab Melting Point nyob rau hauv daim ntawv Tabular
Qhov sib txawv ntawm Boiling Point thiab Melting Point nyob rau hauv daim ntawv Tabular

Summary – Boiling Point vs Melting Point

Ob lub qhov kub thiab txias yog qhov khoom ntawm cov teeb meem. Lawv ua lub luag haujlwm tseem ceeb heev thaum nws los piav txog cov khoom siv. Qhov sib txawv tseem ceeb ntawm qhov kub thiab txias yog qhov kub ntawm qhov kub ntawm lub xeev cov kua hloov mus rau nws lub xeev gaseous whereas melting point yog qhov kub thiab txias uas lub xeev hloov mus rau hauv lub xeev ua kua.

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