Video: Cov nonpolar molecules puas muaj dipole dipole rog?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ua tau nonpolar molecules nthuav tawm dipole - zog dipole ? Dipole - dipole zog tshwm sim thaum qhov zoo ntawm ib tug polar molecule yog attracted rau qhov tsis zoo ntawm ib tug polar molecule . Hauv ib tsis muaj polar molecule , tej zaum tseem yuav muaj polar bonds, nws tsuas yog hais tias tus dipoles rho tawm ib leeg tawm.
Ib yam li ntawd, dab tsi intermolecular rog ua tsis muaj polar molecules muaj?
Yog tias molecule yog tsis muaj polar , ces tsis muaj kev sib cuam tshuam dipole-dipole lossis hydrogen bonding ua tau tshwm sim thiab tsuas yog ua tau lub zog intermolecular yog cov tsis muaj zog van der Waals zog.
Tom qab, lo lus nug yog, yuav ua li cas ib tug nonpolar molecule induce ib dipole nyob rau hauv ib tug nyob ze nonpolar molecule? A dipole - induced dipole ua attraction yog ib tug tsis muaj zog attraction uas tshwm sim thaum ib tug polar molecule induces ib dipole hauv atom los yog hauv a tsis muaj polar molecule los ntawm kev cuam tshuam qhov kev npaj ntawm electrons nyob rau hauv lub tsis muaj polar hom.
Yog li ntawd, cov molecules twg muaj dipole dipole rog?
Polar covalent compounds zoo li hydrogen chloride, HClstart ntawv, H, C, l, ntawv kawg, thiab hydrogen iodide, HIstart ntawv, H, kuv, kawg ntawv- muaj dipole - dipole kev sib cuam tshuam ntawm ib nrab nqi ions thiab London dispersion zog nruab nrab molecules.
Puas yog h2o polar lossis nonpolar?
Ib tug dej molecule, abbreviated li H2O , yog ib qho piv txwv ntawm a polar covalent bond. Cov electrons tsis sib npaug, nrog rau cov pa atom siv sij hawm ntau nrog cov hluav taws xob ntau dua li cov hydrogen atoms. Txij li thaum electrons siv sij hawm ntau nrog cov pa atom, nws nqa ib feem tsis zoo nqi.
Pom zoo:
Polar molecules puas tiv thaiv cov tsis muaj polar molecules?
Polar molecules (nrog +/- tsub) yog nyiam rau cov dej molecules thiab yog hydrophilic. Nonpolar molecules yog repelled los ntawm dej thiab tsis yaj hauv dej; yog hydrophobic
Dab tsi yog qhov sib txawv ntawm cov rog yuav cuam tshuam rau kev sib cuam tshuam ntawm cov dej molecules?
1 Teb. Qhov tseeb, dej muaj tag nrho peb hom kev sib xyaw ua ke, nrog qhov muaj zog tshaj plaws yog hydrogen bonding. Txhua yam muaj London dispersion yuam cov kev sib cuam tshuam tsis muaj zog yog ib ntus dipoles uas tsim los ntawm kev hloov ntawm electrons nyob rau hauv ib lub molecule
Leej twg yog tus qauv ntawm ib qho tsis muaj polar molecule uas muaj cov ntawv cog lus nonpolar?
(1), (3) H2O thiab NH3 yog cov molecules uas muaj polar covalent bonds, tab sis lawv cov khoom siv hluav taws xob tsis sib luag. (4) H2 yog ib tug nonpolar molecule uas muaj ib tug symmetrical tis ntawm electrons, tab sis cov nyiaj ntawm cov hydrogen atoms yog nonpolar covalent
Puas yog dej molecules nyiam rau lwm cov polar molecules?
Raws li qhov tshwm sim ntawm dej polarity, txhua tus dej molecule attracts lwm cov dej molecules vim yog cov nqi sib txawv ntawm lawv, tsim hydrogen bonds. Dej kuj nyiam, lossis nyiam, lwm cov polar molecules thiab ions, suav nrog ntau cov biomolecules, xws li qab zib, nucleic acids, thiab qee cov amino acids
Puas yog n2 dipole dipole?
(c) NH3: Hydrogen Bonding dominates (txawm hais tias muaj dispersion thiab dipole-dipole rog ib yam nkaus). (b) TSIS muaj qhov kub siab dua vim tias nws muaj dipole-dipoleforces, qhov N2 tsuas muaj zog tawg. (c) H2Te muaj qhov kub siab dua li H2S. Ob leeg muaj dispersion thiab dipole-dipole rog