Baziwa ngokuthi uketshezi labo imikhiqizo nezinto ezenzeka kulesi simo sendaba. Siyazi ukuthi kunezinto ezintathu ezingaba khona zendaba: okuqinile, uketshezi kanye negesi. Lokhu kwehluka nge- ukuhlangana kwezinhlayiya eziyibumbayo.
Esifundazweni ketshezi, i amandla akhangayo phakathi kwama-molecule abuthakathaka ukwedlula okuqinile kepha kunamandla kunamagesi. I- ama-molecule ahamba futhi ahlangana, kudlidlizela nokuslayida ngaphezu komunye nomunye.
Eziphuzweni,inani lezinhlayiya ngevolumu yeyunithi liphezulu kakhulu, ukuze ukushayisana nokungqubuzana phakathi kwezinhlayiya kuvame kakhulu. Ukuthi into ethile isesimweni esiwuketshezi yini, esiqinile noma esinegesi kuncike kakhulu ekushiseni nasekucindezelekeni komphunga wayo. Ezifundeni ezifudumele zomhlaba, ngokwesibonelo, amanzi ayenzeka esimweni soketshezi.
Yize iziphuzo ama-molecule angahamba futhi ashayisane, ahlala esondelene kakhulu. Njengoba izinga lokushisa ketshezi landa, umfutho wama-molecule awo ngamanye nawo uyakhuphuka.
Ngenxa yalokho, iziphuzo ingangena ngaphakathi kokuma kwesiqukathi sayo sesitsha, kodwa azinakucindezelwa kalula ngoba ama-molecule asevele aboshiwe. Yingakho iziphuzo zingenaso isimo esimile, kepha zinevolumu. Iziphuzo zingaphansi kwezinqubo zokukhulisa nokunciphisa.
Bhekafuthi: Izibonelo eziqinile
Izici eziyinhloko zezinto eziketshezi zifaka: Iphuzu lokubilisa, okuyizinga lokushisa elibilisa kulo bese kuba yisimo segesi, lokhu kunikezwa yingcindezi yomhwamuko (elingana naleyo yento ezungeze uketshezi).
Ezinye izinto ezijwayelekile zoketshezi yilezi:
- I- ukungezwani kobuso, inikezwa ngamabutho akhangayo kuzo zonke izinkomba ngaphakathi kuketshezi
- I- i-viscosity, emele amandla aphikisayo oketshezi oluya ekukhubazekeni kwe-tangential (lokhu kubonakala kuphela ekunyakaziseni uketshezi)
- I- amandla, okuchaza ukuthi kulula kanjani ukuthi uketshezi lukhuphuke ngamashubhu amancane (ubukhulu be-capillaries), lapho amandla okubumbana edlulwa ngamandla wokubambelela.
Ingakusebenzela:
- Izibonelo zokuqina, uketshezi namagesi
- Izibonelo zeGaseous State
Izibonelo zezinto ezingamanzi ku-25 ° C yilezi:
- Amanzi
- Uphethiloli
- uphalafini
- i-ethyl alcohol
- i-methanol
- I-petroleum ether
- chloroform
- i-benzene
- i-sulfuric acid
- i-hydrochloric acid
- i-glycerin
- i-acetone
- i-ethyl acetate
- i-phosphoric acid
- toluene
- i-acetic acid
- ubisi
- inhlanganisela kawoyela edliwayo
- isoamyl utshwala
- uwoyela we-sunflower
