Qee lub tebchaw, xws li dej, yog tsis tshua muaj volatile; Feem ntau qhov no yog vim muaj cov tshuaj lom neeg muaj zog ntawm cov molecules-feem ntau yog cov hydrogen bonds-uas tawm tsam cov nyiam ntawm cov molecules rau nkag mus rau hauv lub xeev gaseous.
Puas yog dej yog qhov hnyav hnyav?
Ib qho piv txwv zoo ntawm cov tshuaj tsis hloov pauv yog cov dej qab zib. Raws li tus nqi ntawm cov piam thaj hauv cov tshuaj nce ntxiv, lub boiling point kuj nce, nrog ib tug txo nyob rau hauv vapor siab. Piv txwv li, ib qho tshuaj volatile yog ib qho uas evaporates yooj yim. … Solutes + Solvents=Solutions, and dej is the universal solvent
Puas yog dej yog cov khoom tsis haum?
Zuag qhia tag nrho, dej yog lub ntsiab tsis hloov pauv thaum lub sijhawm tawg.
Puas yog dej tsis muaj tshuaj lom?
Lub volatility ntawm ib yam khoom yog cuam tshuam los ntawm lub zog ntawm intermolecular rog. Piv txwv li, dej tsis tuaj yeem hloov pauv ntawm chav tsev kub thiab yuav tsum tau ua kom sov kom evaporate. Qhov no yog vim hydrogen bonding ntawm cov molecules.
Yuav ua li cas yog tsis-volatile?
Glycerin (C3H8O3)yog cov kua uas tsis muaj hluav taws xob. Qab Zib (sucrose) thiab ntsev (sodium chloride) yog cov khoom tsis muaj zog. Tej zaum nws yuav yooj yim dua los xav txog cov khoom uas tsis muaj hluav taws xob yog tias koj xav txog cov khoom ntawm cov khoom uas tsis hloov pauv. Piv txwv suav nrog cawv, mercury, roj av, thiab naj hoom.
