Video: Van't Hoff factor txhais li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Wiki- Cov van 't Hoff factor yog qhov sib piv ntawm qhov tseeb concentration ntawm cov khoom tsim thaum cov khoom yog yaj, thiab cov concentration ntawm ib yam khoom raws li xam los ntawm nws pawg. Rau feem ntau cov uas tsis yog-electrolytes yaj hauv dej, lub van 't Hoff factor yog qhov tseem ceeb 1.
Cia li saib qhov no, dab tsi yog qhov van't Hoff qhia peb?
Cov van 't Hoff factor kuv (lub npe hu ua Dutch chemist Jacobus Henricus van 't Hoff ) yog ib qho kev ntsuas ntawm cov nyhuv ntawm cov kuab tshuaj raws li kev sib koom ua ke xws li osmotic siab, txheeb ze qis hauv vapor siab, boiling point elevation thiab freezing point depression.
Ib tug kuj yuav nug, vim li cas lub van tsis yog Hoff yam tseem ceeb? Cov van't Hoff factor yog li ntawd ib qho kev ntsuas ntawm kev sib txawv ntawm tus cwj pwm zoo. Qhov qis dua van't Hoff factor , qhov ntau dua qhov sib txawv. Raws li qhov concentration ntawm cov kua qaub nce, lub van't Hoff factor txo qis vim hais tias ionic compounds feem ntau tsis tag nrho dissociate nyob rau hauv aqueous tov.
Kuj kom paub, koj siv lub van't Hoff li cas?
Cov mis rau kev txiav txim siab van't Hoff factor yog i = ntsuas tus nqi / xam tus nqi. Cov van't Hoff factor tuaj yeem siv rau ib qho ntawm cov khoom sib tsoo. Rau peb ua hauj lwm nrog colligative zog, peb yuav ib txwm siv tus nqi zoo tagnrho rau kev daws teeb meem.
Dab tsi yog van't Hoff yam ntawm MgSO4?
Lub vant Hoff yam rau MgSO 4 yog 2 raws li nws dissociates kiag li rau hauv ob ions. Yog li vant Hoff yam rau BaCl2 yog 3 raws li nws dissociates rau peb ions.
Pom zoo:
Dab tsi yog qhov density dependent limiting factor txhais li cas?
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