Cov txheej txheem:

Dab tsi yog qhov kev sib raug zoo ntawm kev ua lej ntawm qhov kev nyuaj siab khov kho thiab Mollality?
Dab tsi yog qhov kev sib raug zoo ntawm kev ua lej ntawm qhov kev nyuaj siab khov kho thiab Mollality?

Video: Dab tsi yog qhov kev sib raug zoo ntawm kev ua lej ntawm qhov kev nyuaj siab khov kho thiab Mollality?

Video: Dab tsi yog qhov kev sib raug zoo ntawm kev ua lej ntawm qhov kev nyuaj siab khov kho thiab Mollality?
Video: ua siab muab neej tso nrab ke - Dawb yaj (CV ) | OFFICIAL | nkauj tawm tshiab 2023 2024, Kaum ib hlis
Anonim

Kev nyuaj siab ntawm qhov dej khov yog ib qho cuab yeej sib koom ua ke pom hauv cov kev daws teeb meem uas tshwm sim los ntawm cov kev taw qhia ntawm solute molecules rau ib qho hnyav. Cov ntsiab lus khov ntawm cov kev daws yog tag nrho qis dua li ntawm cov kuab tshuaj ntshiab thiab yog ncaj qha proportional rau molality ntawm cov kuab tshuaj.

Raws li txoj cai, koj ua li cas xam Mollality los ntawm qhov chaw khov kho kev nyuaj siab?

Tswv yim:

  1. Kauj Ruam 1: Muab xam qhov chaw txias txias ntawm benzene. Tf = (Nqe dej khov ntawm cov kuab tshuaj dawb huv) - (Qhov dej khov ntawm kev daws)
  2. Kauj Ruam 2: Xam cov molal concentration ntawm cov tshuaj. molality = moles ntawm solute / kg ntawm hnyav.
  3. Kauj Ruam 3: xam Kf ntawm qhov kev daws teeb meem. Tf = (Kf) (m)

Ib yam li ntawd, vim li cas Mollality siv rau hauv qhov chaw khov? Wendy K. Colligative zog yog lub cev ntawm kev daws teeb meem, zoo li boiling taw tes elevation thiab qhov chaw khov kev nyuaj siab. Qhov no yog vim li cas peb siv molality (moles solute ib kg ntawm hnyav) txij li thaum kg ntawm hnyav tsis hloov nrog kub.

Cov lus nug tseem yog, koj txhais li cas los ntawm kev nyuaj siab ntawm qhov chaw khov?

Txias point kev nyuaj siab tshwm sim thaum lub qhov chaw khov ntawm cov kua yog txo qis los yog nyuaj siab los ntawm kev ntxiv lwm qhov sib xyaw rau nws. Cov tshuaj muaj qis dua qhov chaw khov dua li cov kuab tshuaj ntshiab.

Mollality cuam tshuam li cas rau qhov kub?

Qhov siab dua qhov concentration ( molality ), qhov siab dua kub point . Koj tuaj yeem xav txog qhov no nyhuv raws li yaj solute crowding tawm cov kuab tshuaj molecules ntawm qhov chaw, qhov twg boil tshwm sim. Yog li ntawd, nws yuav tsum tau siab dua kub kom txaus cov kuab tshuaj molecules khiav mus ntxiv boil ntawm atmospheric siab.

Pom zoo: