Molecules uas muaj zog intermolecular rog yog rub ua ke kom nruj kom tsim cov khoom ntawm qhov kub siab dua, yog li lawv qhov chaw khov yog siab dua. Cov molecules nrog qis zog sib xyaw ua ke yuav tsis khov kom txog thaum qhov kub thiab txias qis dua.
Yuav ua li cas rau molecules thaum khov?
Freezing tshwm sim thaum ib cov kua txias thiab tig mus rau ib qho khoom. Nws thiaj li cov hais nyob rau hauv cov kua nres txav mus thiab nyob rau hauv ib tug ruaj khov kho, tsim ib tug khoom. … Yog tias cov roj txias txias, nws cov khoom yuav tsum tsis txhob txav mus sai heev thiab ua kua.
Yuav ua li cas cov rog muaj zog nyob hauv dej khov?
Molecular solids yog tuav ua ke los ntawm kev sib cuam tshuam cov rog-dispersion rog, dipole-dipole rog, thiab hydrogen bonding. Cov dej khov tau tuav ua ke los ntawm hydrogen bonds, thiab cov dej khov qhuav tau tuav ua ke los ntawm kev tawg rog.
Yuav ua li cas ntawm qhov chaw khov?
Kwv yees, kub uas cov kua ua ib qho khoom. Raws li nrog lub melting point, nce siab feem ntau tsa lub freezing point. Qee cov kua tuaj yeem ua tau supercooled-piv txwv li, txias hauv qab ntawm qhov chaw khov-tsis muaj cov khoom siv lead ua. …
Qhov kub li cas cuam tshuam rau lub zog ntawm lub cev?
Thaum peb nce qhov kub, peb yog nce qhov nruab nrab kinetic zog ntawm cov khoom hauv qhov teeb meem-qhov no txhais tau tias peb tab tom ua rau lawv mussai dua. Yog hais tias cov khoom mus nrawm dua, ces lawv tuaj yeem khiav tawm ntawm lub zog ntawm lub cev.
