Video: Vim li cas 100 Yield tsis yooj yim sua?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Feem pua tawm los = (Qhov tseeb tawm los / kwv yees tawm los ) x 100 Yields yeej tsis 100 % vim tias ib txwm poob ntawm cov khoom thiab / lossis tib neeg yuam kev.
Ib yam li ntawd, vim li cas koj thiaj li tau txais ib feem pua yuav tau tshaj 100?
Qhov tseeb tawm los yog tus nqi ntawm cov khoom uas yog tiag tiag tsim thaum cov tshuaj tiv thaiv yog nqa tawm nyob rau hauv lub laboratory. Txawm li cas los xij, feem pua yields ntau dua 100 % yog ua tau yog tias cov khoom ntsuas ntawm cov tshuaj tiv thaiv muaj impurities uas ua rau nws loj loj dua nws ua tau yuav yuav yog hais tias cov khoom yog dawb huv.
Ib yam li ntawd, dab tsi yog qee qhov laj thawj rau kev rov qab los ntawm qhov kev sim no kom tsawg dua 100%? Ob peb lub laj thawj vim % rov qab los yog tsawg dua ib 100 % yog vim (1) cov reactants tsis tag hloov mus rau hauv cov khoom. Yog tias qhov rov qab tshwm sim tshwm sim, lub xeev kawg yuav muaj ob qho tib si reactants thiab cov khoom lag luam hauv cov tshuaj sib npaug.
Ib yam li ib tug yuav nug, puas yog ib qho rau cov kws kho mob kom tau 100 yields?
Tsis yog. Hauv txhua qhov kev tawm tsam, 100 % tawm los tsuas yog theoretical; Hauv kev muaj tiag, ntau yam tuaj yeem ua rau qee yam ntawm cov khoom tsis raug tsim tawm.
Vim li cas qhov tseeb yield thiab theoretical yield tsis tshua sib npaug?
Rau ntau cov tshuaj tiv thaiv, cov qhov tseeb tawm los feem ntau yog tsawg dua cov theoretical tawm los , nkag siab zoo vim poob rau hauv cov txheej txheem los yog inefficiency ntawm cov tshuaj tiv thaiv.
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