2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Tsis tas li ntawd, kev tshuaj xyuas ntawm 47 lwm cov kuab tshuaj qhia tau hais tias mole-fraction solubility ntawm O2 ib txwm tshaj li ntawm N2, nrog O2 / N2 solubility ratios xws li 1.20 hauv n-dodecane rau 2.31 hauv nitromethane.
Dab tsi yog qhov piv ntawm cov solubilities ntawm N2 thiab O2 hauv h2o ntawm 373 K muab KH N2)=12.6 104 atm thiab KH O2 7.01 104 ATM xav tias P N2 0.80 atm thiab P O2 0.20 atm?
Given that KH(N2 - 7.01 x 10 atm. Assume that po P(O2)0.2 atm 12.6 x 104 atm and KH (O2) PN2)0.8 atm and) [Ans. 2.22
Yuav ua li cas yog qhov piv ntawm solubilities?
Tus nqi ib txwm coj los rau qhov sib piv yog 1 feem ntawm cov kuab tshuaj rau 25 feem ntawm cov kuab tshuaj. Yog tias qhov piv txwv no dhau lawm (piv txwv li 1: 30) lub compound yog tsim los ua insoluble; yog tias nws qis dua tus nqi no (piv txwv li 1: 20) cov khoom raug suav tias yog soluble. Cov xwm txheej ciam teb tau muab tso rau hauv ob chav kawm thiab sim rau hauv txhua qhov.
Puas yog N2 lossis O2 cov kuab tshuaj?
Cua yog tsim los ntawm 80% Nitrogen thiab 20% Oxygencov kuab tshuaj hauv huab cua yog N2thiab cov kuab tshuaj yog O2.
Vim li cas O2 soluble hauv dej ntau dua N2?
Kev piav qhia: Qhov no yog vim cov roj molecules diffuse nruab nrab ntawm cov cua thiab dej saum npoo av. Raws li Henry Txoj Cai Lij Choj, cov ntsiab lus oxygen yaj ntawm dej yog proportional rau feem pua ntawm cov pa oxygen (ib nrab siab) nyob rau saum huab cua saum toj no 13. Nitrogen gas tsis hnov tsw nrog dej. Nwsyaj hauv dej.
Pom zoo:
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.
Dab tsi yog qhov txawv ntawm qhov piv txwv thiab piv txwv?
Yog lub ntsiab lus tsis yog "literal" (raws li sau), ces nws yog "figurative". Cov lus "Figurative" tuaj yeem suav nrog cov lus piv txwv, cov lus piv txwv, puns, exaggerations (hyperbole), thiab lwm yam. Puas yog piv txwv thiab piv txwv zoo ib yam?
Dab tsi yog kev xav ntawm autonomists dab tsi yog qhov kev xav ntawm kev zoo nkauj ntawm kev coj ncaj ncees?
Kev lig kev cai, muaj ob txoj haujlwm tawm tsam kev xav txog kev coj ua raws li kev cai lij choj ntawm kev ntsuas kev ncaj ncees ntawm kev kos duab: 'kev coj ncaj ncees kev ncaj ncees Ethics lossis kev coj ncaj ncees yog ib ceg ntawm kev xav uas "
Piv txwv thiab qhov sib piv yog dab tsi?
Piv txwv li, yog tias koj xav tsom mus rau qhov sib piv ob yam koj yuav tsis xaiv apples thiab txiv kab ntxwv; es, koj tuaj yeem xaiv los sib piv thiab sib piv ob hom txiv kab ntxwv lossis ob hom txiv apples kom pom qhov sib txawv me ntsis. Piv txwv li, Red Delicious apples qab zib, thaum Granny Smiths yog tart thiab acidic.
Puas piv thiab sib piv cov lus sib piv?
Cov lus sib piv thiab qhov sib txawv yog synonyms, tab sis txawv ntawm nuance. Tshwj xeeb, sib piv txhais tau hais tias lub hom phiaj ntawm kev qhia tus txheeb ze muaj txiaj ntsig lossis kev ua tau zoo los ntawm kev nthuav tawm cov yam ntxwv zoo txawm tias zoo sib xws lossis sib txawv.
