Qhov sib txawv tseem ceeb ntawm cov kua thiab aqueous yog lub sij hawm ua kua yog hais txog cov kua dej uas yuav luag tsis sib haum thaum lub sij hawm aqueous yog hais txog cov kua uas muaj dej ua cov kuab tshuaj.
Muaj peb theem ntawm cov teeb meem xws li theem khoom, theem ua kua thiab theem roj. Cov theem ua kua muaj cov khoom nruab nrab rau cov khoom khib nyiab thiab cov pa roj. Tej yam uas yuav luag incompressible kua yog kua. Peb muab cov ntsiab lus no vim tias gases kuj yog kua, tab sis lawv yog cov kua compressible. Qee cov kua dej ntshiab thaum lwm tus yog cov sib xyaw ntawm qee yam khoom. Cov sib tov uas muaj nyob hauv lub xeev ua kua yog "kev daws teeb meem". Ib qho tshuaj muaj cov kuab tshuaj uas yaj hauv cov kuab tshuaj. Yog tias cov kuab tshuaj yog dej, ces peb hu cov tshuaj ntawd yog cov tshuaj aqueous.
Ua Kua Dej yog dab tsi?
Ib lub kua yog ib yam kua uas yuav luag incompressible. Nws tsis muaj qhov txhais tau tias; yog li, nws yuav siv lub thawv uas muaj cov kua dej uas twb muaj lawm. Txawm li cas los xij, nws khaws qhov ntim tas li uas tsis muaj kev ywj pheej ntawm lub siab. Cov khoom ntawm cov kua yog me me thiab vibrating hais xws li atoms. Lub zog intermolecular nruab nrab ntawm cov khoom no tuav lawv ua ke kom lub ntim tas li, tab sis lub zog ntawm cov intermolecular rog tsis txaus los tuav cov duab ruaj khov.
Daim duab 01: Kev Sib piv ntawm Viscosity ntawm ob lub kua
Feem ntau, qhov ntom ntawm cov kua yog ze rau cov khib nyiab tab sis deb dua li roj. Yog li ntawd, peb tuaj yeem sau cov khoom khib nyiab thiab kua ua ke ua cov khoom condensed. Viscosity yog lwm yam khoom tseem ceeb ntawm cov kua. Lub viscosity yog qhov tsis kam ntawm cov kua ntws.
Aqueous yog dab tsi?
Lo lus aqueous hais txog "muaj dej". Yog li ntawd, cov tshuaj aqueous hais txog cov tshuaj uas muaj dej ua ib feem. Txij li dej yog cov kuab tshuaj paub zoo, nws ua raws li cov kuab tshuaj ntawm cov kua dej aqueous uas dissolves cov kuab tshuaj hauv nws. Tshwj xeeb tshaj yog, lo lus no yog hais txog lub xeev cov teeb meem uas muaj dej thiab lwm yam khoom ua ib homogeneous sib tov.
Tsis tas li ntawd, thaum sau cov qauv tshuaj, peb siv "(aq)" tom kawg ntawm cov tshuaj aqueous, piv txwv li cov tshuaj aqueous ntawm sodium chloride sau ua NaCl(aq). Hauv qhov sib piv, cov tshuaj tsis muaj dej yog ib qho teeb meem hauv lub xeev ua kua uas muaj cov kuab tshuaj uas tsis yog dej.
Daim duab 02: Cov Dej Molecules nyob ib ncig ntawm Sodium Ion hauv NaCl(aq)
Qhov tseem ceeb tshaj plaws, cov tshuaj aqueous muaj cov kuab tshuaj uas yog hydrophilic lossis polar. Qhov no yog vim dej molecules yog polar. Yog li, nws tuaj yeem yaj cov polar compounds tab sis tsis yog cov tshuaj tsis muaj polar. Ntxiv mus, cov kev daws teeb meem no zoo li yaj cov khoom siv hydrophilic nkaus xwb.
Qhov txawv ntawm Kua thiab Aqueous yog dab tsi?
Txhua cov tshuaj aqueous yog kua, tab sis tsis yog tag nrho cov kua dej yog cov tshuaj aqueous. Qhov sib txawv tseem ceeb ntawm cov kua thiab aqueous yog lub sij hawm ua kua yog hais txog cov kua dej uas yuav luag tsis muaj zog thaum lub sij hawm aqueous hais txog cov kua uas muaj dej ua cov kuab tshuaj. Yog li ntawd, aqueous daws yog ib hom kua. Raws li lwm qhov sib txawv tseem ceeb ntawm cov kua thiab aqueous, peb tuaj yeem hais tias cov kua ntshiab tsis muaj cov kuab tshuaj, tab sis cov kua tsis huv muaj cov kuab tshuaj uas yog cov organic lossis inorganic thaum cov kua dej ib txwm muaj dej ua cov kuab tshuaj.
Ib qhov sib txawv ntxiv ntawm cov kua thiab aqueous yog cov kua yuav muaj hydrophilic los yog hydrophobic solutes whereas aqueous daws yeej ib txwm muaj hydrophilic solutes. Cov lus qhia hauv qab no ntawm qhov sib txawv ntawm cov kua thiab aqueous tabulates txhua qhov sib txawv uas peb tau tham ntawm no.
Summary – Kua vs Aqueous
Ib qho tshuaj aqueous yog ib hom kua. Yog li ntawd, tag nrho cov aqueous tov yog kua, tab sis tsis yog tag nrho cov kua yog aqueous daws. Qhov sib txawv tseem ceeb ntawm cov kua thiab aqueous yog lub sij hawm ua kua yog hais txog cov kua dej uas yuav luag tsis sib haum thaum lub sij hawm aqueous yog hais txog cov kua uas muaj dej ua cov kuab tshuaj.
