Cov txheej txheem:

Puas yog c2h6 lossis c4h10 muaj qhov kub siab dua?
Puas yog c2h6 lossis c4h10 muaj qhov kub siab dua?

Video: Puas yog c2h6 lossis c4h10 muaj qhov kub siab dua?

Video: Puas yog c2h6 lossis c4h10 muaj qhov kub siab dua?
Video: "Puag Yoj Mas" [OFFICIAL MUSIC VIDEO] - KT Killing Em 2024, Kaum ib hlis
Anonim

12.38 Nws muaj tus siab dua vapor siab (a) C2H6 los yog C4H10 : C2H6 muaj tus siab dua vapor siab. Muaj tsuas yog dispersion rog, thiab cov no muaj zog nyob rau hauv lub hnyav dua C4H10 molecule. Nyob rau hauv cov ntaub ntawv zoo li no, lub hnyav molecules, uas muaj muaj zog dispersion rog, yuav muaj tus siab kub taw tes.

Yog li ntawd, puas yog c3h8 lossis c4h10 muaj qhov kub siab dua?

C2H6 < C3H8 < C4H10 . Tag nrho cov tshuaj no yog nonpolar thiab xwb muaj London dispersion rog: qhov loj dua lub molecule, qhov loj dua lub zog dispersion thiab lub siab dua tus kub point.

Ib yam li ntawd, qhov twg yuav muaj qhov kub siab dua? Lub zog txheeb ze ntawm plaub lub zog sib txawv yog: Ionic > Hydrogen bonding > dipole dipole > Van der Waals dispersion rog. Kev cuam tshuam ntawm txhua qhov kev ntxim nyiam zog yuav nyob ntawm cov pab pawg ua haujlwm tam sim no. Cov ntsiab lus kub nce raws li cov pa roj carbon ntau ntxiv.

Kuj paub, qhov chaw twg koj xav kom muaj qhov kub siab dua?

Qhov muaj zog ntawm lub zog intermolecular, lub siab dua tus kub point . Feem ntau, hydrogen bonding muaj zog dua li dipole-dipole attractions, uas yog muaj zog tshaj London dispersion rog.

Yuav ua li cas koj txiav txim siab boiling point?

Boiling-Point Elevation Piv txwv

  1. Glucose yog peb cov kua dej thiab dej yog qhov hnyav.
  2. Kb rau dej yog 0.51 degrees Celsius kg / mol.
  3. Molar mass ntawm qabzib yog 180 g / mol.
  4. Cov dej kub npau npau yog 100 degrees Celsius.
  5. Qhov sib npaug rau qhov siab ntawm qhov siab yog delta T = mKb.

Pom zoo: