Unit izidakamizwa ukuminyana

Uyini iyunithi kwabantu? Ake uchaze izici ubuningi ngokomzimba.

Leli gama kuyinto Isikhombisi esibalulekile uwoyela, kanye imikhiqizo ehlukahlukene petroleum.

Izici kwegama elithi

Ngo Petrochemical zanamuhla zisebenzisa iyunithi ukuminyana impahla ezifana kg / M3, kanye g / M3. Ukusebenzisa izibalo efanayo eyenziwa izindinganiso ezihlobene sokunquma isisindo ketshezi. Ephambi kwezinduna ivolumu, kanye kwabantu aziwayo we ketshezi, singakwazi ukuthola lamafutha.

Ukunqunywa

Isisindo ketshezi noma ingxube ingxenye okumsulwa limelela inani mass, okuyinto equkethwe emqulwini iyunithi. SI iyunithi ukuminyana - kg / M3. Ukuthatha ukuba abe namandla enani nenqwaba eyodwa imitha cubic of amanzi distilled, okuyinto ezithathwe lokushisa ezine.

Ngokuyisisekelo akusho ukubala inani eliphelele ketshezi noma inhlanganisela izingxenye, futhi kwabantu isihlobo okusibonisa isilinganiso nesisindo ingxube (ingxenye) ukuze amanzi oluhlanzekile ivolumu alinganayo.

Ngokuvumelana nenani kwamanani ka isihlobo Inkomba kanye kwabantu ngokuphelele ziyafana, kunomehluko kuphela ubukhulu. In the engekho isihlobo unit kwabantu.

Ezweni lethu kukhona GOST ekhethekile 3900, owawuthi ukuzimisela density ashisa isibonisi 20 degrees Celsius.

amazinga wezizwe okhethekile isetshenziselwa ukubala kwabantu imikhiqizo uwoyela ukuthekelisa ne-petroleum. Ahlanganisa ukusetshenziswa hydrometer futhi digital ukuminyana analyzer.

E-United States naseBrithani esetshenziswa amagugu okunemibandela ezifana degrees, owethulwa ngisho degrees ekhethekile Baume futhi IPA. Phakathi kwabo kukhona ubuhlobo esashiwo zibalo izibalo.

Ezinye izinto incwadi okukhulunywe ngayo isiqu ukuminyana d204. Empeleni lokhu ubuningi ngokomzimba kulinganiswa at amagugu ahlukahlukene lokushisa, usebenzisa ukubaluleka Coefficient sokwanda volumetric.

Ubuningi njengendlela inkomba ahlukene kubalulekile umkhakha Petrochemical. Ngaphezu kwalokho, igama elithi ngokomzimba isetshenziswa ekunqumeni Ukwakheka iqembu kwesakhiwo-ngokuhlaziya ingxube hydrocarbon izingxenyana zaso.

Kusukela lokho ukuminyana kuncike

Amayunithi ukuminyana izilinganiso abonisa ukuthi ubuningi ngokomzimba ezihlobene ivolumu kanye mass. Yiziphi ezinye izinkomba bukaJehova kubonakala kwabantu ndaba?

On ukuminyana kuthinta isimo amakhemikhali izinto abalekeleli Ukwakheka wamaqhuzu, isisindo yamangqamuzana we nabavoti, khona solutes okuqukethwe hlalani izinto. Kuye ukujula yobudala Geological yokushintsha kwabantu yamafutha. Kwamakhemikhali bazisebenzisa ukuminyana amayunithi izinto njengoba g / cm3.

Izindlela sokunquma ukuminyana

ERussia, kuncuma hydrometric ukuminyana futhi indlela pycnometric. Samuntu yesibili omude kanye nesikhathi indlela oqothulayo, inikeza okusezingeni eliphezulu nesilinganiso ukunemba. isisekelo isisindo salo kubalwa uqhathanisa umthamo ihlaziye lamafutha noma uwoyela ngamanzi ezingeni lokushisa mass amagugu alinganayo. Imiphumela iba yinhlanganisela yokukhandleka iyunithi ukuminyana ukuze ngaphakathi 0,0001. Pycnometers kukhona ingilazi iziqukathi kokuba ikhava uphawu. izitsha Ivolumu avunyelwe 1, 5, 25 ml.

Yini ethize hydrometric indlela? Kukhona i standard international ngaso indlela laboratory ukucacisa kwabantu uwoyela ketshezi, uwoyela ahlanzekile. Indlela kuhilela ukusetshenziswa ingilazi hydrometer at +15 kanye +20 degrees Celsius.

A hydrometer uyisitsha cylindrical, ezansi iyona isikebhe sizinze. indawo yayo kumelwe nakanjani babe izinhlangothi zazo ziyalingana. hydrometers abaningi babe thermometer. Insimbi senziwa esikalini esikhethekile, iyunithi density etholakalayo. Ukuze uthuthukise ukuqonda izincazelo, ungasebenzisa iqoqo hydrometers, usebenzisa ukwahlukana eziningana ezengeziwe kulesi silinganiso.

Le ndlela inquma kwabantu izixazululo ecacile motile, usebenzisa ukuqondana we meniscus ephansi kuya hydrometer substrate. Isebenza kuhle nxa kwabantu uketshezi opaque isikali hydrometer ifundwa ngokukhetha ukuqondana ngenduku meniscus engenhla.

Nge esibushelelezi ukucwiliswa hydrometer, ngemva kwalophiko, kwabantu nemingcele kubalwa. Esimweni lapho kukhona umehluko lokushisa 20 degrees, ukunqunywa ukuminyana Kwenziwa ngaso etholakalayo lokushisa inkomba ke zokubala kabusha wenziwa.

Kubalwa kwabantu

Ekuphileni kwansuku zonke, abantu ngokuvamile basebenzisa izinkulumo ngokuqhathanisa: "ukukhanya, sengathi emoyeni," "esindayo, okomthofu". Futhi cishe akekho kubo akusho cabanga kungakhathaliseki ukuthi anencazelo ethile.

Ngo-physics esikoleni izifundo ahlinzekwa izingane izibalo, ezixhunywe nenani ezintathu emzimbeni: ukuminyana, mass, ivolumu. Ngokwesibonelo, kuphakanyiswa ukubala mass zethusi nemigoqo steel, kokuba umthamo ofanayo. Ukuze sibhekane msebenzi, kuba izinkomba ezidingekayo ezifana kwabantu. I metal luthe ukuqina, siyoba sikhulu ibha isisindo.

Indlela yokwenza yokukala mass izingxenye phambili ezithinta izinsimbi ezahlukene? Okokuqala ukucacisa ukuphakama, ububanzi, ubude ngamunye wabo, ibalwa kusukela inani izinkomba wathola. Ungasebenzisa le izinsimbi isigwedlo isethi izinsimbi. Ukuze sithole ukuminyana kunesidingo ukuthola isilinganiso mass yesiminyaminya into.

isiphetho

Iyini inhlanganiso? Lena ubuningi ngokomzimba okuyinto ephawula into ethile. Lokhu kubizwa ngokusentshenziswa isilinganiso mass ivolumu yento engesimumathini. Lokhu ipharamitha luchazwa ngegama uhlamvu (po), iyunithi eyisisekelo ukumeda International SI kg / M3. It ephawula imfuyo uqobo akuxhomekile kulokho ivolumu noma isisindo isampula yasekuqaleni. At kokukhulisa isisindo ingxube noma izidakamizwa okumsulwa kathathu, ncamashi izikhathi eziningi ivolumu uzokwehla, kuyilapho ukuminyana alushintshi.