Cov txheej txheem:
Video: Yuav ua li cas koj pom qhov sib npaug ntawm qhov nqus ntawm qhov nqus?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
X = [Fe(SCN)2+] thiab yuav tsum tau txiav txim los ntawm tus qauv nkhaus. Koj mam li xam cov equilibrium tsis tu ncua , Keq , siv cov kev sib npaug concentrations. Tus qauv nkhaus yog ib zajlus ntawm Absorbance versus [Fe(SCN)2+] (Daim duab 8.1). Nws tuaj yeem siv los muab peb cov concentration ntawm kev daws teeb meem thaum muab cov absorbance.
Ua kom pom qhov no, koj yuav ua li cas thiaj nrhiav tau qhov sib npaug ntawm qhov nqus ntawm qhov nqus?
Yog li ntawd, [Fe(SCN)2+]ua eq tuaj yeem txiav txim ncaj qha los ntawm absorbance kev ntsuas. Equilibrium concentrations ntawm cov reactants tuaj yeem xam los ntawm kev rho tawm equilibrium concentration ntawm qhov khoom los ntawm qhov pib concentrations ntawm cov reactants.
Qhov thib ob, FeSCN yog dab tsi? Cov FeSCN 2+ complex uas yog tsim los ntawm cov tshuaj tiv thaiv ntawm hlau (III) thiab thiocyanate ions muaj ib tug heev khaus ntshav liab xim (los yog txiv kab ntxwv nyob rau hauv dilute tov), tso cai rau kom yooj yim nrhiav tau thiab txiav txim kom muaj nuj nqis los ntawm spectrophotometric. Reactants (Fe3+ thiab SCN-) xyaum tsis muaj xim.
Ua li no, koj yuav pom qhov sib npaug li cas los ntawm Beer txoj cai lij choj?
equilibrium concentration ntawm cov khoom
- [FeSCN2+] ntawm qhov sib npaug yog txiav txim siab siv Beer Txoj Cai; x yog tus nqi ntawm FeSCN2+ tsim (txiav txim siab sim).
- x = [FeSCN 2+] ua eq =
- a.
- Siv Eq.
- Nrhiav tus nqi nruab nrab ntawm Kua eq, tus qauv sib txawv, thiab cov txheeb ze yuam kev (tus qauv sib txawv muab faib los ntawm qhov nruab nrab).
KEQ txhais li cas?
Keq tsuas yog qhia koj yam uas yuav nyiam ntawm kev sib npaug. Txij li thaum Keq = [products]/[reactants] tus nqi loj ntawm k (k>> 1) txhais tau tias cov tshuaj tiv thaiv yuav nyiam cov khoom ntau dua, txhais tau tias thaum cov tshuaj tiv thaiv mus txog qhov sib npaug koj yuav muaj feem ntau cov khoom.
Pom zoo:
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
Koj yuav ua li cas thiaj daws tau qhov sib npaug ntawm qhov tsis sib xws?
Muaj peb kauj ruam: Rov kho qhov sib npaug kom 'y' nyob rau sab laug thiab txhua yam ntawm sab xis. Teem lub 'y =' kab (ua rau nws yog ib txoj kab ruaj khov rau y≤ lossis y≥, thiab ib txoj kab dashed rau y) Duab ntxoov ntxoo saum kab rau 'ntau tshaj' (y> lossis y≥) lossis hauv qab kab rau ib qho 'tsawg dua' (y < lossis y≤)
Puas yog txhua qhov sib npaug sib npaug sib npaug?
Thawj qhov sib npaug sib npaug yog qhov tseeb yog tias nws muaj kev txuag kom muaj nuj nqis. Piv txwv li, qhov sib npaug sib cais yeej ib txwm muaj tseeb, txij li lub ntsiab lus lawv yog ntawm daim ntawv: M(y) + N(t) = 0, yog li ϕ(t, y) = A(y) + B(t) yog a khaws cia kom muaj nuj nqis
Nws puas yuav ua rau pom qhov sib npaug ntawm kab sib npaug mus rau ib kab thiab los ntawm ib qho taw tes ntawm kab?
Qhov sib npaug ntawm ib kab uas yog parallel lossis perpendicular rau ib kab? Cov lus teb tau: Cov nqes hav ntawm cov kab sib npaug sib npaug. Hloov txoj kab nqes paub thiab cov kev sib koom ua ke ntawm ib qho taw tes ntawm lwm txoj kab rau hauv daim ntawv point-slope kom pom qhov sib npaug ntawm kab sib npaug
Dab tsi yog qhov sib txawv ntawm cov kab lus sib npaug thiab qhov sib npaug sib npaug?
Cov kab lus sib npaug muaj qhov muaj txiaj ntsig zoo ib yam tab sis tau nthuav tawm nyob rau hauv ib hom ntawv sib txawv uas siv cov khoom ntawm cov lej xws li ax + bx = (a + b) x yog cov kab lus sib npaug. nruj me ntsis, lawv tsis yog 'sib npaug', yog li peb yuav tsum siv 3 kab sib luag hauv 'sib npaug' es tsis yog 2 raws li qhia ntawm no