Video: Puas yog ethanol lossis acetone muaj qhov kub siab dua?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yog li ntawd, ethanol (nrog rau H-bonding peev) yuav tsum muaj qhov kub siab tshaj plaws , nrog polar muaj acetone tom ntej no siab tshaj kub point , thiab cov nonpolarpropane, nrog lub zog tsis muaj zog tshaj plaws, yuav muaj qis tshaj kub point . 41.
Hauv qhov no, vim li cas acetone muaj qhov kub siab dua li ethanol?
Hauv koj qhov xwm txheej, muaj acetone lub sijhawm dipole siab dua tshaj ethanol vim nws muaj ib pawg carbonyl ntxiv rau qhov chaw thiab yog li acetone muaj tsawg dua qhov kub ntawm ethanol.
Tom qab ntawd, lo lus nug yog, vim li cas ethanol muaj qhov kub kub? hydrogen bonding ntawm cov molecules ntawm dej yog siab dua tshaj qhov kev sib txuas ntawm cov molecules ntawm ethanol uas txhais tau hais tias ntau lub zog cua sov yuav tsum tau ua kom tawg cov nyiaj ntawm cov dej molecules uas ua rau kom muaj kev sib tsoo ntawm cov dej molecules muaj los ntawm kev ua kom muaj zog ntxiv. boiling point.
Ib yam li ntawd, koj tuaj yeem nug, puas yog ethanol muaj qhov kub kub?
173.1°F (78.37°C) kub
Puas yog acetone muaj qhov kub siab dua li dej?
Dej muaj ib feem kub kub taw tes vim yog cov intermolecular hydrogen bonds ntawm dej molecules. Txawm li cas los xij, lawv tsis muaj zog li hydrogen bonds ntawm nruab nrab dej molecules. Yog li ntawd, tsawg zog yuav tsum tau vaporize acetone tshaj dej ( ua rau nws boil ”).
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