Video: Puas gaseous dej molecules tsim hydrogen bonds?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Txhua dej molecule tuaj yeem tsim ob hydrogen bonds koom nrog lawv hydrogen atoms ntxiv ob ntxiv hydrogen bonds siv cov hydrogen atoms txuas rau cov neeg nyob sib ze dej molecules.
Kuj paub, puas hydrogen bonding tshwm sim hauv gases?
Hydrogen bonding tshwm sim tsuas yog nyob rau hauv molecules qhov twg hydrogen yog covalently ua phooj ywg rau ib qho ntawm peb yam: fluorine, oxygen, lossis nitrogen. Cov hydrogen bonding uas tshwm sim hauv dej ua rau qee qhov txawv txav, tab sis tseem ceeb heev. Feem ntau cov tebchaw molecular uas muaj huab hwm coj zoo ib yam li dej cov pa ntawm chav tsev kub.
Ib yam li ntawd, muaj pes tsawg hydrogen bonds tuaj yeem tsim cov dej molecule? plaub daim ntawv cog lus hydrogen
Tsis tas li ntawd, yog dej covalent lossis hydrogen bond?
Covalent bonds yog cov daim ntawv cog lus nruab nrab ntawm cov atom hauv tib yam dej molecule. Hydrogen bonds yog cov daim ntawv cog lus nruab nrab ntawm ob dej molecules. Tag nrho cov molecules muaj covalent bonds , tab sis tsuas yog qee cov molecules muaj hydrogen bonds . Ua piv txwv, dej muaj hydrogen bonds , tab sis carbon dioxide tsis.
Yuav ua li cas hydrogen bonds tsim?
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 tswvyim zoo ib yam li magnetic attraction qhov twg opposite ncej 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.
Pom zoo:
Yuav ua li cas hydrogen bonding ntawm cov dej molecules pab piav qhia dej lub peev xwm nqus tau ntau lub zog ua ntej evaporation?
Cov hydrogen bonds hauv dej tso cai rau nws nqus thiab tso tawm lub zog cua sov qeeb dua li ntau lwm yam khoom. Qhov kub thiab txias yog ib qho kev ntsuas ntawm qhov kev txav (kinetic zog) ntawm cov molecules. Raws li cov lus tsa suab nce, lub zog yog siab dua thiab yog li kub siab dua
Muaj pes tsawg atoms hauv cov duab molecule tuaj yeem tsim hydrogen bonds nrog dej?
Dr. Haxton hais rau nws cov chav kawm tias cov dej molecule tuaj yeem ua 4 hydrogen bonds, tag nrho lawv nyob rau hauv tib lub dav hlau raws li peb lub atoms
Hauv cov molecules lom neeg twg koj tuaj yeem pom hydrogen bonds?
Hydrogen Bond Piv txwv Hydrogen bonding tshwm sim nto moo tshaj plaws ntawm cov dej molecules. Tib neeg DNA yog ib qho piv txwv nthuav ntawm hydrogen daim ntawv cog lus. Hydroflouric thiab formic acids muaj ib hom tshwj xeeb ntawm hydrogen daim ntawv cog lus hu ua symmetric hydrogen bond
Puas muaj hydrogen bonds tsim ntawm H thiab N?
Hydrogen bonding yog ib hom tshwj xeeb ntawm dipole-dipole attraction ntawm molecules, tsis yog covalent daim ntawv cog lus rau hydrogen atom. Nws tshwm sim los ntawm lub zog txaus nyiam ntawm hydrogen atom covalently bonded rau ib tug heev electronegative atom xws li N, O, los yog F atom thiab lwm yam electronegative atom
Vim li cas hydrogen bonds tseem ceeb rau cov roj ntsha molecules?
Hydrogen bonding yog qhov tseem ceeb hauv ntau cov txheej txheem tshuaj. Hydrogen bonding yog lub luag haujlwm rau dej cov kuab tshuaj tshwj xeeb. Hydrogen bonds tuav cov kab sib txuas ntawm DNA ua ke, thiab lawv yog lub luag haujlwm rau kev txiav txim siab peb-dimensional qauv ntawm folded proteins nrog rau cov enzymes thiab cov tshuaj tiv thaiv