Ho Utloisisa Likarabelo tsa Exothermic le Endothermic
Likarabelo tsa lik'hemik'hale ke ketsahalo ea bohlokoa eo re atisang ho kopana le eona bophelong ba letsatsi le letsatsi. Li etsahala eseng feela lilaboratoring empa hape le lits'ebetsong tse fapaneng tse etsahalang ho re potoloha, joalo ka ho pheha, ho futhumatsa, ho chesa mafura, esita le ka har'a 'mele ea rona. Likarabelo tsa lik'hemik'hale li ka aroloa ka lihlopha tse fapaneng. E 'ngoe ea tsa bohlokoa ka ho fetisisa e ipapisitse le hore na mocheso o lokolloa kapa oa monngoa nakong ea karabelo. Moelelong ona, liketso tsa lik'hemik'hale li ka aroloa ka mefuta e 'meli e meholo: exothermic le endothermic.
Ho Utloisisa Likarabelo tsa Exothermic
Likarabelo tsa Exothermic ke lik'hemik'hale tse lokollang matla ka mokhoa oa mocheso tikolohong e potolohileng. Matla ana a ka hlaha ka mokhoa oa leseli, mocheso, kapa ka bobeli. Ts'ebetso ena e ka bonoa hang-hang ka ho eketsa mocheso tikolohong ea karabelo. Mohlala o tloaelehileng haholo oa karabelo ea exothermic ke ho chesoa ha mafura, joalo ka patsi, khase, kapa oli. Ha mafura ana a cha, matla ka mokhoa oa mocheso a lokolloa tikolohong.
Tšobotsi ea karabelo ena ke hore enthalpy ea lihlahisoa e tlase ho feta enthalpy ea li-reactant. Sena se bolela hore matla a lokolloang ha lihlahisoa li thehoa a maholo ho feta matla a hlokahalang ho roba litlamo ka har'a li-reactant. Mohlala o mong ke ts'ebetso ea ho hema linthong tse phelang, moo glucose e robehang ka thuso ea oksijene ho hlahisa carbon dioxide, metsi le matla.
Mehlala ea Likarabelo tsa Exothermic:
1. Ho Chesoa ha Methane:
CH₄ + 2O₂ → CO₂ + 2H₂O + matla (mocheso)
2. Karabelo pakeng tsa asiti le motheo:
HCl(aq) + NaOH(aq) → NaCl(aq) + H₂O + matla (mocheso)
Bophelong ba letsatsi le letsatsi, re ka kopana le diphetoho tse etsahalang ka ntle ho mocheso nakong ya ho tjhesa patsi ka hara setofo kapa ka hara mollo, hammoho le mefuteng e fapaneng ya diphetoho tse hlahisang mocheso, jwalo ka di-firework le ho phatloha ha di-dynamos.
Ho Utloisisa Likarabelo tsa Endothermic
Karabelo ea endothermic ke ntho e fapaneng le karabelo ea exothermic. Karabelo ena e monya matla a tsoang tikolohong ea eona ka mokhoa oa mocheso. Ka lebaka leo, mocheso oa tikoloho e potolohileng oa fokotseha. Matla a monngoang ke li-reactant a sebelisetsoa ho roba litlamo tsa khale tsa lik'hemik'hale le ho theha tse ncha. Ka kakaretso likarabelo tsa endothermic li hloka matla a eketsehileng ho feta likarabelo tsa exothermic.
Tšobotsi ea karabelo ena ke hore enthalpy ea lihlahisoa e kholo ho feta enthalpy ea li-reactant. Sena se bolela hore ho hlokahala matla a mangata ho roba litlamo ka har'a li-reactant ho feta a lokolloang ha lihlahisoa li thehoa. Likarabelo tsa endothermic hangata li fumanoa lits'ebetsong tsa tlhaho, joalo ka photosynthesis limela.
Mehlala ea Likarabelo tsa Endothermic:
1. Tlhahisoleseding ea photosynthesis:
6CO₂ + 6H₂O + matla (a tsoang letsatsing) → C₆H₁₂O₆ + 6O₂
2. Ho bola ha calcium carbonate:
CaCO₃(s) + matla (mocheso) → CaO(s) + CO₂(g)
Ho photosynthesis, dimela di monya matla a tswang kganyeng ya letsatsi ho fetola carbon dioxide le metsi hore e be glucose le oksijene. Tshebetso ena e bohlokwa bophelong Lefatsheng hobane e bopa motheo wa ketane ya dijo.
Phapang ea Bohlokoa Pakeng tsa Likarabelo tsa Exothermic le Endothermic
Kamora ho utloisisa litlhaloso tsa motheo le mehlala ea mefuta ena e 'meli ea lik'hemik'hale, a re hlahlobeng phapang e kholo lipakeng tsa liketso tsa exothermic le endothermic:
1. Matla:
– Likarabelo tsa Exothermic li lokolla matla tikolohong e potolohileng, ha likarabelo tsa endothermic li monya matla tikolohong e potolohileng.
2. Liphetoho tsa mocheso:
– Dikarabelo tsa exothermic hangata di baka keketseho ya mocheso wa tikoloho, ha dikarabelo tsa endothermic di baka phokotso ya mocheso.
3. Enthalpy:
– Karabelong ea exothermic, enthalpy ea lihlahisoa e ka tlase ho enthalpy ea li-reactant. Ka lehlakoreng le leng, karabelong ea endothermic, enthalpy ea lihlahisoa e kholo ho feta enthalpy ea li-reactant.
4. Tataiso ea Motsu oa Matla Setšoantšong sa Enthalpy:
– Setšoantšong sa enthalpy bakeng sa karabelo ea exothermic, motsu oa matla o lebisitsoe tlase (ho bontša ho lokolloa ha matla), ha karabelong ea endothermic, motsu oa matla o lebisitsoe holimo (ho bontša ho monngoa ha matla).
Tšebeliso Bophelong ba Letsatsi le Letsatsi
Likarabelo tsa exothermic le endothermic ka bobeli li bapala karolo ea bohlokoa likarolong tse fapaneng tsa bophelo le indasteri. Mehlala e meng ke ena:
Karabelo ea Exothermic:
1. Ho Futhumala ha Lefatše:
– Ho chesa mafura a mesaletsa ea lintho tsa khale ho hlahisa matla ho ntša matla a mangata a mocheso sepakapakeng, e leng se tlatsetsang ho futhumaleng ha lefatše.
2. Indasteri le Tlhahiso ea Matla:
– Dikarabelo tsa exothermic tse kang ho tjheswa ha mashala le kgase ya tlhaho di sebediswa dipolanteng tsa motlakase ho hlahisa eneji.
3. Tšireletso:
– Disebediswa tse ngata tsa polokeho tse kang mollo wa kampo kapa diqhomane di sebetsa hodima molaomotheo wa dikarabelo tsa exothermic.
Karabelo ea Endothermic:
1. Lisebelisoa tsa ho sehatsetsing:
– Lisebelisoa tse ngata tsa ho pholisa tse kang leqhoa le omileng le liphutheloana tsa ho pholisa li sebetsa ho latela liketso tsa endothermic tse monyang mocheso o tsoang tikolohong, ka hona li baka ho pholisa.
2. Sebopeho sa Ozone:
– Likarabelo tsa bohlokoa tsa endothermic sepakapakeng, tse kang ho thehoa ha ozone, e monyang mahlaseli a UV a tsoang letsatsing le ho sireletsa lefatše.
3. Ts'ebetso ea Indasteri:
– Mekhoa e meng ea indasteri, joalo ka ts'ebetso ea tšepe le tšepe kapa tlhahiso ea lik'hemik'hale tse itseng, e kenyelletsa liketso tsa endothermic tse hlokang ho kenngoa ha matla a mangata.
Qetello
Likarabelo tsa Exothermic le Endothermic ke mefuta e 'meli ea motheo ea lik'hemik'hale tse bapalang karolo ea bohlokoa lits'ebetsong tse fapaneng tsa tlhaho le tsa indasteri. Likarabelo tsa Exothermic li lokolla matla, ha likarabelo tsa Endothermic li monya matla. Phapang e kholo lipakeng tsa tse peli e holima hore na matla a laoloa joang nakong ea karabelo.
Ho utloisisa liketso tsa exothermic le endothermic ha ho bohlokoa feela ho bo-rasaense le baenjiniere, empa hape ho na le lits'ebetso tse sebetsang bophelong ba rona ba letsatsi le letsatsi. Ho tloha matla ao re a sebelisang letsatsi le letsatsi ho ea lits'ebetsong tsa baeloji tse etsahalang 'meleng ea rona, mefuta ena e 'meli ea liketso e hohle. Kahoo, ho ithuta ka liketso tsa exothermic le endothermic ho fana ka temohisiso e tebileng ka lefats'e la k'hemistri le lits'ebetso tse laolang bophelo lefatšeng.
