2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Yuav kom tsis txhob poob ntawm cov tshuaj reactants lossis cov kuab tshuaj, lub reflux system yog siv nyob rau hauv order kom condense tej vapors uas ua rau cua sov thiab xa cov condensates rau cov tshuaj tiv thaiv hlab ntsha.
Lub hom phiaj ntawm reflux yog dab tsi?
Boiling cov tshuaj rau lub sijhawm ntev yog qee zaum tsim nyog hauv cov tshuaj lom neeg. Refluxing yog ib qho txheej txheem uas kws tshuaj siv los ua kom sov cov kuab tshuaj yam tsis muaj qhov kub ntawm cov kuab tshuaj tseem ceeb. Cua sov cov tshuaj tiv thaiv rau nws cov boiling point yam tsis muaj ib tug condenser rau ntxiab vapor yuav tsum tau zam.
Lub hom phiaj ntawm reflux hauv distillation yog dab tsi?
Loj-scale distillation yees siv lub reflux system kom ua tiav cov khoom tiav tiav. Reflux yog ib feem ntawm tus pej thuam lub condensed overhead kua khoom uas yog cycled rov qab mus rau sab saum toj ntawm lub pej thuam uas nws ntws downwards kom txias thiab condensation ntawm lub upflowing vapors.
Yuav ua li cas thaum reflux?
A reflux apparatus tso cai rau kom yooj yim cua sov ntawm ib qho kev daws teeb meem, tab sis tsis muaj qhov poob ntawm cov kuab tshuaj uas yuav tshwm sim los ntawm cua sov nyob rau hauv ib tug qhib hlab ntsha. Hauv kev teeb tsa reflux, cov kuab tshuaj vapors raug kaw los ntawm lub condenser, thiab cov concentration ntawm reactants tseem nyob tas li thoob plaws hauv cov txheej txheem.
Tus mob reflux tseem ua haujlwm li cas?
Nws ua haujlwm los ntawm txhim kho thiab ua kom pom qhov tsw thiab tsw qab thiab tshem tawm cov tsis xav tau cov tshuaj sulfur hauv thaj tsam loj ntawm tooj liabdome top. Qhov no ua rau ib qho smoother, richer, sweeter tasting ntsuj plig.
Pom zoo:
Cov khoom siv dab tsi yog siv rau phab ntsa screeding?
Plaster of Paris yog ib qho zoo tshaj plaws thiab feem ntau siv cov khoom siv screeding uas muab koj cov phab ntsa zoo tag thiab du. POP mix yuav tsum muaj ob qho khoom xyaw nrog rau cov hmoov gypsum tseem hu ua POP cement thiab tshwj xeeb POP Screeding Paint.
Puas yog cov dab dab dab dab dab dab dab dab dab dab dab dab?
Myth: Ib tug dab tshos tsis yog neeg ncaj ncees yog tiasnws haum yog. Fact: Tu siab, qhov no yog ib lo lus tsis tseeb uas tau raug perpetuated los ntawm aversive trainers. Txawm hais tias haum rau lub caj dab kom zoo khawb rau hauv cov tawv nqaij rhiab nyob ib ncig ntawm lub caj dab, uas ua rau muaj kev puas tsuaj loj rau cov thyroid, esophagus, thiab trachea.
Yuav ua li cas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau pom kev pom?
Txawm li cas los xij, corneal collagen cross-linking - cov txheej txheem qib siab tau pom zoo los ntawm US Food and Drug Administration (FDA) hauv xyoo 2016 - tuaj yeem txhim kho qhov pom kev hauv cov neeg mob txhua hnub nyoog. Corneal collagen cross-linking (CXL) tsis yog kho rau keratoconus, tab sis nws tuaj yeem pab tiv thaiv tus mob kom tsis txhob mob hnyav.
Yuav siv dab tsi txhawm rau txhawm rau txhawm rau txhawm?
Siv phom caulk siv cov hlaws tuab ntawm caulk ncig ntawm ntug ntawm lub txee. Tsa lub dab dej kom nws nias tawm tsam lub hauv qab ntawm lub countertop thiab tsim cov dej tsis sib haum. Ntxiv cov laug cam thiab shims raws li xav tau los xyuas kom meej lub dab dej nyob hauv qhov chaw.
Puas yog cov dab dab dab dab dab dab tau them?
OHL cov neeg ua si tsis tau nyiaj hli, vim lawv tsis raug lees paub tias yog cov neeg ua haujlwm raws li Txoj Cai Kev Ua Haujlwm. Txawm li cas los xij, lawv suav nrog cov txiaj ntsig xws li nyiaj rov qab txhua xyoo, tag nrho cov nqi kawm ntawv them, thiab daim pib pub dawb.
