Lub Ntsiab Lus Tseem Ceeb. Lub boiling point ntawm ib tug ntshiab tshuaj yog qhov kub ntawm cov tshuaj hloov los ntawm ib tug kua mus rau lub gaseous theemNyob rau hauv no taw tes, lub vapor siab ntawm cov kua yog sib npaug zos rau lub siab thov ntawm lub gaseous theem. ua kua. Lub boiling point ntawm lub siab ntawm 1 cua yog hu ua lub boiling point…
Yuav ua li cas ntawm qhov kub ntawm cov khoom?
Lub ntsiab lus kub ntawm cov khoom yog qhov kub ntawm qhov vapor siab ntawm cov kua sib npaug ntawm lub siab nyob ib puag ncig cov kua thiab cov kua hloov mus ua vapor. Lub boiling point ntawm cov kua nws txawv nyob ntawm seb ib puag ncig lub siab.
Yuav ua li cas koj pom qhov kub ntawm cov khoom?
Cov Formula rau Boiling Point
Nws feem ntau xam raws li: Kb=RTb2M/ΔHv, R yog cov roj universal tas li. Tb yog qhov kub kub ntawm cov kuab tshuaj ntshiab [hauv K] M yog qhov molar loj ntawm cov kuab tshuaj.
Lub hom phiaj ntawm kev txiav txim siab kub hnyiab yog dab tsi?
lub boiling point yog xam raws li ib tug qauv ntawm purity ntawm ib tug compound thiab yog siv tau rau kev txheeb xyuas cov organic tebchawZoo ib yam li lub melting point qhov boiling point yuav ntse los yog tej zaum yuav txawv. tshaj qhov ntsuas kub. Cov kua ntshiab muaj cov ntsiab lus kub npau npau thaum cov khoom sib xyaw ua kom pom qhov kub kub.
Yuav ua li cas daws qhov kub hnyiab?
Qhov sib npaug yooj yim rau kev txiav txim siab kub ntawm qhov kev daws: delta T=mKb Delta T yog hais txog qhov kub ntawm qhov siab, lossis ntau npaum li cas qhov kev daws qhov kub kub yog dua li cov kuab tshuaj ntshiab. Cov units yog degrees Celsius. Kb yog molal boiling point elevation tas li.
