Vim li cas kev sib koom ua ke tseem ceeb hauv dej?
Vim li cas kev sib koom ua ke tseem ceeb hauv dej?

Video: Vim li cas kev sib koom ua ke tseem ceeb hauv dej?

Video: Vim li cas kev sib koom ua ke tseem ceeb hauv dej?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Hlis ntuj nqeg
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Kev sib koom tes tso cai rau kev txhim kho ntawm qhov nro, lub peev xwm ntawm cov khoom siv los tiv thaiv kev tawg thaum muab tso rau hauv qhov nro lossis kev ntxhov siab. Qhov no kuj yog vim li cas dej daim ntawv tee dej thaum muab tso rau ntawm qhov chaw qhuav es tsis yog flattened los ntawm lub ntiajteb txawj nqus.

Ua raws li qhov xav tau, vim li cas kev sib koom ua ke ntawm cov dej tseem ceeb rau lub neej?

Kev sib koom tes (lub attraction ntawm dej molecules rau lwm yam dej molecules), adhesion (lub attraction ntawm dej molecules rau txawv molecules), nto nro, thiab capillary action plays lub luag hauj lwm loj nyob rau hauv lub neej . Dej Nws muaj peev xwm ua kom yaj ntau yam tshuaj vim nws tuaj yeem rub sib nrug ntawm lwm yam khoom.

Ib sab saum toj, dej cohesion yog dab tsi? Kev sib koom tes hauv dej yog ib yam khoom ntawm dej uas ua rau nws cov molecules attracted rau ib leeg. A dej molecule yog tsim los ntawm ib tug oxygen atom bonded rau ob hydrogen atoms. Qhov kev tsis sib haum xeeb ntawm cov nqi no ua rau cov neeg sib tw nyiam, thiab dej molecules bonds rau ib leeg nrog tsis muaj zog hydrogen bonds.

Ib yam li ntawd, nws raug nug, vim li cas kev sib koom ua ke tseem ceeb rau cov khoom muaj sia?

Kev sib koom tes txhais tau hais tias dej molecules lo rau ib leeg. Kev sib koom tes tshwm sim los ntawm hydrogen bonds. Yog vim li cas kev sib raug zoo ntawm dej tseem ceeb rau muaj sia nyob ? Nws yog tseem ceeb hauv cov nroj tsuag thaum dej tau rub los ntawm cov hauv paus hniav vim kev sib koom tes tso cai rau cov dej molecules los ua ke.

Dab tsi yog dej cohesion thiab adhesion?

Adhesion thiab kev sib koom tes tseem ceeb dej cov khoom uas cuam tshuam li cas dej ua haujlwm txhua qhov chaw, los ntawm cov nplooj nplooj mus rau koj lub cev. Kev sib koom tes : Dej yog attracted rau dej , thiab Adhesion : Dej yog attracted rau lwm yam khoom.

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