Lub zog sib cais yog lub zog yuav tsum tau -tus txheej txheem endothermic-kom tawg ib daim ntawv cog lus thiab tsim ob qho atomic lossis molecular tawg, txhua tus muaj ib qho hluav taws xob ntawm tus khub qub. Yog li, daim ntawv cog lus ruaj khov heev muaj kev sib koom ua lag luam loj-lub zog ntau dua yuav tsum tau ntxiv kom tshem tawm daim ntawv cog lus.
Dab tsi yog qhov sib txawv ntawm lub zog sib cais thiab lub zog sib cog lus?
Qhov sib txawv tseem ceeb ntawm daim ntawv cog lus lub zog thiab daim ntawv cog lus lub zog yog qhov lub zog cog lus yog qhov nruab nrab ntawm lub zog xav tau los rhuav tshem txhua daim ntawv cog lus ntawm tib ob hom atoms hauv qhov sib xyaw whereas bond dissociation zog yog lub zog xav tau los rhuav tshem ib qho kev sib cog lus hauv homolysis.
Puas yog daim ntawv cog lus sib cais zog zoo lossis tsis zoo?
Cov nyiaj qiv nyiaj lossis cov nyiaj qiv nyiaj sib koom ua ke yog ib txwm zoo, txij li lawv sawv cev rau qhov endothermic homolysis ntawm covalent daim ntawv cog lus.
Puas yog daim ntawv cog lus dissociation zog enthalpy?
Bond enthalpy (uas tseem hu ua daim ntawv cog lus-dissociation enthalpy, nruab nrab daim ntawv cog lus lub zog, lossis daim ntawv cog lus muaj zog) piav qhia tus nqi ntawm lub zog khaws cia hauv daim ntawv cog lus ntawm atoms hauv ib lub molecule. … Qhov siab dua ntawm daim ntawv cog lus enthalpy, lub zog ntau dua yog xav tau los rhuav tshem daim ntawv cog lus thiab qhov ruaj khov dua.
Vim li cas lub zog dissociation tseem hu ua lub zog nyiaj txiag?
Bond dissociation zog yog tsuas yog sib npaug ntawm daim ntawv cog lus zog rau diatomic molecules. Qhov no yogvim tias daim ntawv cog lus dissociation zog yog lub zog ntawm ib daim ntawv cog lus tshuaj, thaum daim ntawv cog lus lub zog yog qhov nruab nrab tus nqi rau tag nrho cov nyiaj sib koom ua ke ntawm txhua daim ntawv cog lus ntawm qee yam hauv ib lub molecule.
