Matlotlo a Kopanetsoeng a Litharollo tsa Electrolyte
Pendahuluan
Litšobotsi tsa litharollo tse kopantsoeng ke litšobotsi tse itšetlehileng feela ka palo ea likaroloana tse qhibilihang ka har'a solvent e fanoeng, ho sa tsotelehe mofuta kapa mofuta oa lik'hemik'hale oa likaroloana tseo. Litharollo tsa electrolyte li na le litšobotsi tse ikhethang hobane li na le li-solvent tse ka ioning, tsa hlahisa li-ion tse ntle le tse mpe. Ts'ebetso ena e fapana le litharollo tse seng tsa electrolyte, moo solute e lulang e le ka sebopeho sa limolek'hule ka bomong.
Phapang e hlahelletseng ka ho fetisisa pakeng tsa ditharollo tsa electrolyte le tse seng electrolyte ke palo ya dikarolwana tse hlahiswang ha solute e qhibiliha ka hara solvent. Ditharollong tsa tse seng electrolyte, palo ya dikarolwana ka hara solvent e tsamaellana le palo ya dimolek'hule tsa solute. Ka lehlakoreng le leng, ditharollong tsa electrolyte, solute e arohana ho ba di-ion, e leng se eketsang palo ya dikarolwana ka hara solvent.
Matlotlo a Kopanetsoeng
Litšobotsi tse 'ne tse ka sehloohong tsa litharollo tsa colligative ke ho tepella ha khatello ea mouoane, ho tepella ha ntlha ea ho hatsela, ho phahama ha ntlha ea ho belisa, le khatello ea osmotic. Litharollong tsa electrolyte, litšobotsi tsena tse 'ne tsa colligative li susumetsoa ke palo ea li-ion tse hlahisoang ke ho arohana ha solute.
1. Phokotso ea Khatello ea Mouoane (Molao oa Raoult)
Ho fokotseha ha kgatello ya mouoane ho etsahala ka lebaka la boteng ba dikarolwana tse qhibilihang ka hara solvent e hlwekileng e thibelang ho feto-fetoha ha dimolek'hule tsa solvent. Ho ya ka molao wa Raoult, ho fokotseha ha kgatello ya mouoane ya tharollo ya electrolyte ho feta ha tharollo ya nonelectrolyte e nang le mahloriso a tshwanang, hobane palo ya dikarolwana ka hara tharollo ya electrolyte e kgolo ka lebaka la ho arohana ha solute. Mohlala, mole e le nngwe ya NaCl e arohana ho ba di-ion tse pedi (Na+ le Cl-), kahoo palo ya ditlamorao tsa dikarolwana ka hara tharollo e kgolo habeli ho feta mole e le nngwe ya ntho ya nonelectrolyte.
2. Ho Tepella Maikutlo ha Dintlha tsa Ho Hlwella
Ntlha ea ho hoama ea tharollo ke mocheso oo tharollo e fetohang ho oona ho tloha mokelikeling ho ea ho karolo e tiileng. Ha solute e eketsoa ho solvent, ntlha ea ho hoama ea tharollo e tla fokotseha. Ho fokotseha hona ha ntlha ea ho hoama ho lekana ka ho toba le molarity ea solute le van't Hoff factor (i), e leng palo ea likaroloana tse hlahisoang ho tsoa ho yuniti e le 'ngoe ea solute ka har'a tharollo. Litharollong tsa electrolyte, van't Hoff factor e kholo ho feta e le 'ngoe, kahoo ho fokotseha ha ntlha ea ho hoama ho hoholo ho feta litharollong tse seng tsa electrolyte.
Foromo ea ho fumana ho tepella ha ntlha ea leqhoa:
\[
\Delta T_f = i \cdot K_f \cdot m
\]
Di mana:
– \(\Delta T_f\) ke ho putlama ha ntlha ya ho hoama
– \(i\) ke ntlha ea van't Hoff
– \(K_f\) ke ntlha e sa fetoheng ya ho tepella ha molal ya solvent
– \(m\) ke molality ea solute
3. Keketseho ea Ntlha ea ho Belisa
Ho eketsa solute ho solvent ho boetse ho etsa hore ntlha e belang ea tharollo e eketsehe. Molao-motheo ona o thehiloe tabeng ea hore likaroloana tse qhibilihisitsoeng li sitisa ho fetoha ha mouoane ha limolek'hule tsa solvent, tse hlokang mocheso o phahameng ho fihlela khatello e tšoanang ea mouoane le solvent e hloekileng. Joalo ka ha ho le joalo ka ho fokotseha ha ntlha ea ho hoamisa, ho phahama ha ntlha ea ho belisa ea litharollo tsa electrolyte le hona ho bohlokoa ho feta ha litharollo tse seng tsa electrolyte hobane likaroloana tse ngata li hlahisoa ke ho arohana.
Foromo ea ho phahamisa ntlha e belang:
\[
\Delta T_b = i \cdot K_b \cdot m
\]
Di mana:
– \(\Delta T_b\) ke keketseho ea ntlha e belang
– \(i\) ke ntlha ea van't Hoff
– \(K_b\) ke ntlha e sa fetoheng ya molal e belang ya solvent
– \(m\) ke molality ea solute
4. Khatello ea Osmotic
Kgatelelo ya Osmotic ke kgatelelo e hlokahalang ho emisa osmosis, motsamao wa solvent ka hara lera le kgonang ho kenngwa metsi hanyane ho tloha tharollong e hlapollotsweng haholoanyane ho ya ho e tiileng haholoanyane. Kgatelelo ya Osmotic (π) e bohlokwa ho biochemistry le physiology hobane e boloka botsitso ba mokelikeli diseleng le mmeleng. Ditharollong tsa electrolyte, kgatelelo ya osmotic e phahame ho feta ditharollong tse seng tsa electrolyte ka lebaka la palo e kgolo ya dikarolwana.
Foromo ea khatello ea osmotic e entsoe ka tsela e latelang:
\[
\pi = i \cdot M \cdot R \cdot T
\]
Di mana:
– \(\pi\) ke kgatello ya osmotic
– \(i\) ke ntlha ea van't Hoff
– \(M\) ke molarity ea solute
– \(R\) ke khase e sa fetoheng e loketseng
– \(T\) ke mocheso o feletseng (Kelvin)
Kopo le Bohlokoa
Ho utloisisa litšobotsi tsa colligative tsa litharollo tsa electrolyte ho bohlokoa mafapheng a fapaneng a saense le theknoloji. Mohlala, bongaka, maro a kenngoang ka methapo a tlameha ho ba le khatello ea osmotic e tšoanang le ea maro a 'mele ho qoba ho senya lisele tsa' mele. Indastering, litšobotsi tsa colligative li sebelisoa ho bolokeng lijo, kalafong ea metsi, esita le ho etseng lihlahisoa tsa ho hloekisa.
Tikolohong ea tlhaho, litšobotsi tsa colligative tsa litharollo tsa electrolyte le tsona li bapala karolo ho ikamahanyeng ha lintho tse phelang le maemo a osmotic. Libōpuoa tse ngata tsa leoatleng li itšetlehile ka bokhoni ba tsona ba ho fetola khatello ea tsona ea ka hare ea osmotic ho phela libakeng tse nang le letsoai le phahameng.
Qetello
Litšobotsi tsa ho kopana ha litharollo tsa electrolyte li bontša bohlokoa ba palo ea likaroloana ho susumetseng liketsahalo tse fapaneng tsa 'mele litharollong. Ho arohana ha li-electrolyte ho eketsa palo ea likaroloana, e leng se eketsang liphello tsa litšobotsi tsa ho kopana tse kang ho theola khatello ea mouoane, ho tepella ha ntlha ea ho hoamisa, ho phahama ha ntlha ea ho belisa le khatello ea osmotic. Kutloisiso e qaqileng ea litšobotsi tsa ho kopana ke ea bohlokoa bakeng sa mefuta e mengata ea lits'ebetso tse sebetsang indastering, merianeng le tlhahong.
Hammoho le tsoelo-pele ea saense le theknoloji, lits'ebetso tse ngata tsa ho utloisisa litšobotsi tsa ntoa li ntse li tsoela pele ho ntlafatsoa molemong oa makala a fapaneng a sechaba.
