Kev ntsuas scientific hauv chemistry yog dab tsi?
Kev ntsuas scientific hauv chemistry yog dab tsi?

Video: Kev ntsuas scientific hauv chemistry yog dab tsi?

Video: Kev ntsuas scientific hauv chemistry yog dab tsi?
Video: Hmong new song 2016 - Yog dab tsi - Xub Hluav Taws (Official MV) 2024, Kaum ib hlis
Anonim

Hauv science, a ntsuas yog ib phau ntawm cov ntaub ntawv ntau lossis cov lej uas piav qhia txog cov khoom ntawm ib yam khoom lossis cov xwm txheej. A ntsuas yog tsim los ntawm kev sib piv ib tug kom muaj nuj nqis nrog ib tug standard unit. Niaj hnub nimno International System of Units (SI) pib txhua yam ntawm lub cev kev ntsuas ntawm xya lub hauv paus units.

Hauv qhov no, kev ntsuas hauv chemistry yog dab tsi?

Kev ntsuas muab ntau cov ntaub ntawv tseem ceeb hauv kev kawm thiab xyaum chemistry . Txhua ntsuas muaj tus nqi, ib chav tsev rau kev sib piv, thiab qhov tsis paub tseeb. Peb siv lub hauv paus SI units xws li meters, vib nas this, thiab kilograms, nrog rau cov muab los units, xws li litres (rau ntim) thiab g / cm.3 (rau qhov ntom).

Tsis tas li ntawd, ntev npaum li cas ntsuas hauv kev tshawb fawb? Ntev yog a ntsuas ntawm kev deb. Hauv International System of Quantities, ntev yog ib tug kom muaj nuj nqis nrog dimension nrug. Nyob rau hauv feem ntau systems ntawm ntsuas , unit of ntev yog lub hauv paus unit, los ntawm lwm cov units yog muab los. Ntev feem ntau nkag siab tias txhais tau tias qhov ntev tshaj plaws ntawm qhov khoom.

Ua li no, siv qhov ntsuas hauv chemistry yog dab tsi?

Chemists ntsuas cov khoom ntawm qhov teeb meem thiab qhia cov no kev ntsuas raws li qhov ntau. Qhov ntau yog ib qho ntawm ib yam dab tsi thiab muaj tus lej thiab ib chav. Tus lej qhia peb ntau npaum li cas (lossis ntau npaum li cas), thiab chav tsev qhia peb tias qhov ntsuas ntawm qhov twg ntsuas yog.

Qhov twg hu ua ntsuas?

Kev ntsuas yog txoj haujlwm ntawm tus lej rau tus yam ntxwv ntawm ib qho khoom lossis kev tshwm sim, uas tuaj yeem muab piv nrog lwm yam khoom lossis xwm txheej. Scope thiab kev siv ntawm ntsuas yog nyob ntawm cov ntsiab lus thiab kev qhuab qhia. Kev tshawb fawb ntawm ntsuas yog nrhiav nyob rau hauv lub teb ntawm metrology.

Pom zoo: