Kelvin vs Fahrenheit
Kelvin thiab Fahrenheit yog ob chav ntsuas kub. Ob qho tib si Kelvin thiab Fahrenheit yog qhov tseem ceeb heev hauv chav tsev thaum nws los txog rau cov haujlwm xws li physics, thermodynamics, engineering thiab astronomy. Ob lub tshuab chav tsev no tau txhais tau zoo, thiab muaj lawv tus kheej zoo sib xws thiab qhov sib txawv. Hauv tsab xov xwm no, peb yuav tham txog qhov tob ntawm cov ntsiab lus ntawm Kelvin thiab Fahrenheit, lawv qhov tseem ceeb, kev siv, qhov sib xws, thiab qhov sib txawv.
Fahrenheit
Fahrenheit yog ib qho ntawm cov ntsuas kub tshaj plaws uas tseem siv tau. Fahrenheit feem ntau suav hais tias yog chav tsev tsis raug cai, tab sis nws tseem yog chav ntsuas ntsuas kub hauv Tebchaws Meskas thiab Belize. Tab sis, raws li feem ntau ntawm cov ntaub ntawv qub yog nyob rau hauv Fahrenheit nws tseem siv nyob rau hauv teb xws li huab cua thiab geology. Fahrenheit system yog thawj zaug los ntawm tus kws kho mob Daniel Gabriel Fahrenheit. Chav tsev tau npaj ua ntej siv peb qhov ntsuas kub ntsuas. Kev sib xyaw ntawm dej khov, dej thiab ammonium chloride tau siv los ua qhov taw qhia rau 0 ° F. Kev sib xyaw ntawm cov dej khov thiab dej tau siv los ua qhov taw qhia rau 32 ° F. Lub cev kub li qub los yog "ntshav kub" tau noj li 96 ° F. Tom qab ntawd, qhov system tau hloov kho rau cov ntsiab lus sib txawv. Cov dej khov thiab dej sib tov li 32 ° F, thiab cov dej sib xyaw ua ke (piv txwv li dej kub npau npau) li 212 ° F. Ib chav tsev ntawm Fahrenheit yog sib npaug rau 1/180th ntawm qhov sib txawv ntawm qhov kub ntawm cov dej thiab cov ntsiab lus melting ntawm dej.
Kelvin
Lub tsev Kelvin yog lub npe tom qab tus kws kho mob William Thomson, 1st baron Kelvin, lossis ntau lub npe hu ua Lord Kelvin. Kelvin yog ib qho ntawm xya lub hauv paus units hauv SI units. Tswv Kelvin tau hais tias yuav tsum muaj ib chav tsev, qhov twg chav tsev loj yog tib yam li Celsius thiab xoom ntawm chav tsev raws li qhov tsis muaj tseeb. Cov kab ke no tau tsim tom qab thiab muaj npe nyob rau hauv kev hwm ntawm Tswv Kelvin. Kelvin yog qhov ntsuas ntsuas qhov ntsuas qhov tseeb, uas txhais tau hais tias tus nqi ntawm cov cua sov tam sim no hauv lub cev yog ncaj qha rau qhov ntsuas kub hauv Kelvin. Lub Kelvin siv tus taw tes triple, thiab qhov xoom kiag li nws cov ntsiab lus txhais. Tsis muaj xoom yog xoom Kelvin, thiab triple point ntawm dej yog 273.16 K. Nyob rau hauv cov ntaub ntawv no, nws yuav pom tseeb hais tias cov Celsius thiab Kelvin yog kom meej meej zoo sib xws nyob rau hauv magnitude.
Qhov txawv ntawm Kelvin thiab Fahrenheit yog dab tsi?
– Kelvin yog ib qho system uas tsis muaj tseeb, qhov Fahrenheit tsis yog.
– Kelvin tuaj yeem siv ncaj qha rau txhua qhov sib npaug uas muaj txhua hom kev sib raug zoo ntawm lej nrog qhov kub thiab txias, tab sis Fahrenheit, yuav luag txhua qhov, yuav tsum tau hloov mus rau hauv Kelvin scale.
– Kelvin nplai tsis muaj qhov tsis zoo tab sis Fahrenheit nplai muaj.
– Ib chav tsev ntawm Fahrenheit yog sib npaug rau 1/180th ntawm qhov sib txawv ntawm qhov kub thiab txias, thaum ib chav tsev ntawm Kelvin yog sib npaug rau 1/100th ntawm qhov sib txawv.
– Kelvin txhais tau hais tias siv peb lub ntsiab lus ntawm cov dej thiab qhov xoom xoom, thaum lub Fahrenheit txhais tau tias siv lub boiling point thiab melting point ntawm dej.
