Qhov ntsuas kub hauv CGS yog dab tsi?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Hauv CGS qhov system, kub yog qhia nyob rau hauv chav tsev calories uas yog ntxiv hais tias yog cov kub lub zog xav tau los nce lub kub 1 g ntawm dej huv los ntawm ib tug degree Celsius. Qee zaum kilocalorie (kcal) kuj raug hu ua a chav ntsuas kub 1 kcal = 1000 cal.

Ntawm no, CGS thiab SI chav tsev ntawm cua sov yog dab tsi?

Cov SI unit of heat yog lub joule, tib yam li lwm yam ntawm lub zog. Centimeter-gram-thib ob tau hloov los ntawm MKS meter-kilogram-thib ob tab sis txawm li cas los xij CGS unit ntawm ntsuas rau kub yog 'erg' thiab SI yog 'Kelvin'.

Ib tug kuj yuav nug, CGS chav tsev thermal muaj peev xwm yog dab tsi? Yog li, qhov tshwj xeeb Thaum tshav kub kub muaj peev xwm ntawm ib yam khoom yog txhais raws li tus nqi ntawm kub yuav tsum tau hloov qhov kub ntawm chav tsev huab hwm coj ntawm cov khoom mus txog 1 degree. Nws chav tsev yog jkg^-1 k^-1hauv SI-system thiab 1 cal gm^-1 C^-1 hauv CGS -system. Nws chav tsev yog j k^-1 hauv SI-system thiab cal C^-1 hauv CGS -system.

Tom qab ntawd, qhov ntsuas kub yog dab tsi?

Raws li ib daim ntawv ntawm lub zog, kub muaj cov chav tsev joule (J) hauv International System ntawm Chav tsev (SI). Txawm li cas los xij, hauv ntau qhov kev thov hauv engineering hauv British thermal unit (BTU) thiab cov calorie ntau ntau yog siv. Tus qauv chav tsev rau tus nqi ntawm kub pauv yog watt (W), txhais tau tias yog ib joule ib ob.

Dab tsi yog SI unit ntawm cov cua sov tshwj xeeb?

Cov SI unit rau tshwj xeeb kub muaj peev xwm yog joule ib kilogram Kelvin, J?kg^-1?K^-1 los yog J/(kg?K), uas yog lub zog yuav tsum tau nce qhov kub ntawm ib kilogram ntawm cov khoom los ntawm ib tug Kelvin.