Video: Dab tsi yog qhov kev ua haujlwm coefficient hauv chemistry?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib kev ua haujlwm coefficient yog ib qho tseem ceeb siv inthermodynamics account rau deviations los ntawm tus cwj pwm zoo nyob rau hauv amixture ntawm tshuaj tshuaj. Lub tswvyim ntawm activitycoefficient yog ze ze rau qhov ntawm kev ua si hauv chemistry.
Tsis tas li ntawd, dab tsi yog txhais los ntawm kev ua haujlwm coefficient?
Txhais ntawm kev ua haujlwm coefficient .: theratio ntawm chemical kev ua si mus rau qhov tseeb concentration: anarbitrary kom muaj nuj nqis uas nyob rau hauv cov ntaub ntawv ntawm kev daws yog ib qho kev ntsuas ntawm lub deviation ntawm ib tug ntau los yog tsawg concentrated tov los ntawm ib tug idealsolution.
Ib yam li ntawd, kev ua ub no txhais li cas hauv chemistry? Hauv tshuaj thermodynamics, kev ua si (cim a) yog ib qho kev ntsuas ntawm "effectiveconcentration" ntawm ib hom nyob rau hauv ib tug sib tov, nyob rau hauv lub siab hais tias cov hom tshuaj muaj peev xwm nyob ntawm kev ua si ntawm ib tug tiag tiag daws nyob rau hauv tib txoj kev uas nws yuav nyob ntawm qhov concentration rau ib qho kev daws teeb meem.
Piv txwv li, dab tsi yog txhais los ntawm kev ua haujlwm thiab kev ua haujlwm coefficient?
Kev ua haujlwm coefficient , nyob rau hauv chemistry, qhov ratio ntawm cov tshuaj kev ua si ntawm ib yam khoom rau nws molarconcentration. Hauv kev daws teeb meem, cov kev ua haujlwm coefficient yog ameasure ntawm ntau npaum li cas ib tug tov txawv ntawm ib tug idealsolution-i.e., ib tug nyob rau hauv uas cov hauj lwm zoo ntawm txhua molecule yog sib npaug zos rau nws theoretical efficiency.
Dab tsi yog qhov kev ua haujlwm coefficient ntawm kev daws teeb meem zoo?
Lub vapor siab ntawm lub daws ua raws Raoult'slaw, thiab kev ua haujlwm coefficient ntawm txhua feem (uas ntsuas kev sib txawv ntawm kev xav) yog sib npaug rau ib qho. Lub tswvyim ntawm zoo tagnrho daws yog qhov tseem ceeb rau cov tshuaj thermodynamics thiab nws cov ntawv thov, xws li kev siv cov khoom sib tsoo.
Pom zoo:
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