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Video: Qhov twg siv hydrogen bonds?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hydrogen bonding tshwm sim feem ntau famously ntawm dej molecules. Thaum ib lub molecule ntawm cov dej attracts lwm tus ob tuaj yeem sib koom ua ke; ntxiv ntau molecules ua rau ntau thiab ntau cov dej lo ua ke. Cov nyiaj no yog lub luag haujlwm rau cov qauv siv lead ua ntawm cov dej khov, uas tso cai rau nws ntab.
Ua li no, nrhiav tau hydrogen bonds nyob qhov twg?
Ib qho piv txwv ntawm a hydrogen daim ntawv cog lus yog pom nruab nrab ntawm cov dej molecules. Nyob rau hauv ib tug discrete dej molecule, muaj ob hydrogen atoms thiab ib tug oxygen atom.
Qhov thib ob, hydrogen daim ntawv cog lus ua li cas? A hydrogen daim ntawv cog lus yog tsim thaum qhov zoo kawg ntawm ib lub molecule yog attracted rau qhov tsis zoo kawg ntawm lwm tus. Lub tswv yim zoo ib yam li sib nqus attraction qhov twg cov ncej sib txawv nyiam. Hydrogen muaj ib tug proton thiab ib tug electron. Qhov no ua rau hydrogen ib qho hluav taws xob zoo atom vim nws muaj qhov tsis txaus ntawm electrons.
Dhau li ntawm no, dab tsi yog cov piv txwv ntawm hydrogen bonds?
Piv txwv ntawm Hydrogen Bonds
- dej (H2O): Dej yog ib qho piv txwv zoo ntawm hydrogen bonding.
- chloroform (CHCl3): Hydrogen bonding tshwm sim ntawm hydrogen ntawm ib lub molecule thiab carbon ntawm lwm molecule.
- ammonia (NH3): Hydrogen bonds tsim ntawm hydrogen ntawm ib lub molecule thiab nitrogen ntawm lwm tus.
Hydrogen bonding ua haujlwm li cas?
Hydrogen bonding yog tus daim ntawv cog lus (los yog ntau dua, ib qho kev sib txuas lus sib txuas) ntawm a hydrogen atom khi rau ib tug heev electronegative atom zoo li Fluorine, Oxygen los yog Nitrogen. Thaum nws daim ntawv cog lus nrog a hydrogen atom, no high charge density ua rau nws rub lub ua phooj ywg electrons ntawm nws tus kheej, tsim ib tug dipole.
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