Read about intermolecular forces | 7 Discussions | Page 1

  1. Amaterasu21

    B Why don't solids always stick together?

    Hi all, Something I've been wondering - why don't two solid surfaces always stick together when touching each other? As far as I'm aware there are five basic types of solids: Atomic solids: Frozen noble gases containing single atoms held together by London dispersion forces. Molecular...
  2. W

    B My Third Post: Change of Intermolecular Distance?

    Hello, Let us imagine a rod resting on a frictionless horizontal surface such that the rod is made up of 2 identical molecules. Let these molecules be named A and B from left to right. If we pull A to the left and B to the right with forces of equal magnitude, the rod must remain at equilibrium...
  3. W

    B My First Post: A Contradiction in Simple Free Fall?

    Hello, Let us imagine a solid in a free fall on planet Earth and let us neglect the effect of air resistance on the motion of the solid. According to Newton's Second Law of Motion, since the only force being applied on the solid is its Weight, then its acceleration must be its Weight divided by...
  4. C

    Chemistry Great books on intermolecular forces (physics + chemistry)

    So i want to understand how concepts like van der waals, electronegavity and covalent bonds were discovered, measured and derived back in the days. I'm looking for a good book to explain this. So far I've looked at a book by Jacob. Intermolecular and Surface Forces, Revised Third Edition -...
  5. B

    Energies of interaction between molecules

    Homework Statement Estimate the energies of interaction at 25 °C between (i) two hydrogen molecules and (ii) two nitrogen molecules, if each pair is separated by 0.3 nm. Explain fully and clearly your reasoning and any assumptions you make in your answer. State the source of the values of any...
  6. G

    Effects of Intermolecular Forces?

    For a van der Waals gas, there are London dispersion forces causing the gas particles to be attracted to each other while the law of excluded volume provides repulsive forces. How do each of these characteristics effect the pressure, volume, and temperature of the gas? I assumed that for the...
  7. D

    Chemistry Why does Hexane have higher intermolecular force than Propylamine?

    < Moderator Note -- thread moved to Homework Help forums > Shouldn't Propylamine (C3H7NH2) be able to form hydrogen bonds with alike molecules? Hexane (c6h14) doesn't seem to have hydrogen bonding capability.