Video: Lub xeev twg ntawm cov teeb meem twg muaj zog tshaj intermolecular rog ntawm attraction?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Raws li qhov kub thiab txias tseem poob qis, qhov teeb meem tsim muaj zog. Vim yog cov khoom tsis muaj zog kinetic, cov khoom tsis muaj "lub sijhawm" txav mus los, cov khoom muaj ntau "lub sijhawm" nyiam. Yog li ntawd, cov khoom khib nyiab muaj lub zog intramolecular uas muaj zog tshaj plaws (vim lawv muaj qhov muaj zog tshaj plaws).
Ib yam li ntawd, tib neeg nug, dab tsi yog qhov muaj zog tshaj plaws intermolecular rog ua kua lossis roj?
Khoom muaj lub zog intermolecular zog ntawm molecules thiab nws yog cov no zog uas tuav cov molecules nyob rau hauv ib tug nruj duab. Hauv ib ua kua tus intermolecular rog tsis tu ncua rhuav thiab hloov kho raws li cov molecules txav thiab swb dua ib leeg.
Tom qab ntawd, lo lus nug yog, dab tsi lub xeev ntawm teeb meem muaj zog intermolecular? Intermolecular rog yog lub zog ntawm cov molecules uas txiav txim siab lub cev ntawm lub cev kua thiab cov khoom khib nyiab . 11.2 Vaporization thiab Vapor Pressure- vaporization yog kev hloov pauv ntawm cov kua mus rau cov pa roj (vapor), thiab qhov ntau ntawm cov cua sov cuam tshuam nrog qhov hloov pauv theem no hu ua enthalpy (heat) ntawm vaporization.
Tom qab ntawd, lo lus nug yog, lub xeev twg muaj qhov tsis muaj zog tshaj plaws ntawm kev nyiam?
- 4 lub xeev ntawm cov teeb meem: Kua, Khoom, Gases, thiab Plasma.
- Intermolecular rog (tsis muaj zog mus rau qhov muaj zog tshaj):
- Rau kev qhia txog roj nyem nyem no.
- Kua State:
- Triple point - qhov kub thiab txias nyob rau hauv uas tag nrho 3 lub xeev ntawm cov teeb meem co-exist nyob rau hauv equilibrium.
Yam dab tsi ntawm cov rog intermolecular muaj nyob hauv cov khoom?
Molecular cov khoom khib nyiab tau tuav ua ke los ntawm intermolecular rog ; kev tawg zog , dipole – dipole zog , thiab hydrogen bonding.
Pom zoo:
Lub xeev twg ntawm cov teeb meem uas nthwv dej taug kev nrawm tshaj plaws?
Ntawm peb theem ntawm cov teeb meem (gas, kua, thiab khoom), suab nthwv dej mus qeeb tshaj plaws los ntawm gases, sai dua los ntawm cov kua, thiab ceev tshaj los ntawm cov khib nyiab
Lub xeev ntawm cov teeb meem dab tsi puas muaj zog tshaj?
Tag nrho cov khoom muaj lub zog, tab sis lub zog sib txawv nyob ntawm qhov ntsuas kub ntawm cov qauv ntawm cov teeb meem nyob rau hauv. Molecules nyob rau hauv cov khoom theem muaj tsawg kawg nkaus lub zog, thaum cov roj hais muaj lub zog loj tshaj plaws
Dab tsi yog ob lub xeev ntawm cov teeb meem pom thaum lub sij hawm melting?
Melting: solid to liquid. Condensation: gas toliquid. Vaporization: kua rau roj
Dab tsi ntawm lub zog intermolecular muaj nyob hauv txhua qhov teeb meem?
Intermolecular rog yog electrostatic nyob rau hauv cov xwm thiab suav nrog van der Waals rog thiab hydrogen bonds. Molecules nyob rau hauv cov kua yog tuav mus rau lwm cov molecules los ntawm kev sib cuam tshuam intermolecular, uas tsis muaj zog tshaj cov intramolecular kev sib cuam tshuam uas tuav cov atoms ua ke nyob rau hauv molecules thiab polyatomic ions
Yam dab tsi ntawm cov rog intermolecular yog active nyob rau hauv lub xeev cov kua?
Dab tsi ntawm cov rog intermolecular muaj zog hauv cov kua hauv lub xeev ntawm txhua yam hauv qab no? a) Neon (Ne) yog cov roj zoo. Cov rog uas muaj nyob hauv cov roj atoms thiab cov tsis muaj polar molecules yog hu ua dispersion rog. Yog li, nyob rau hauv cov kua neon dispersion quab yuam yog active