Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Boiling point

  1. Oct 26, 2009 #1
    1.Why does boiling point depend on weight ?
    2.Does the vanderwall force depend on weight ?
     
  2. jcsd
  3. Oct 26, 2009 #2

    Ygggdrasil

    User Avatar
    Science Advisor

    1. Because dispersion forces (a type of van der Waals force) depend on molecular size.

    2. Dispersion forces (also known as induced dipole-induced dipole interactions) depend on the polarizability of the molecule (how easy it is to get an asymmetric distribution of electron in a molecule). As the number of electrons in a molecule and the size of the molecule increases, the polarizability increases.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Boiling point
  1. Boiling points (Replies: 6)

  2. Boiling points (Replies: 1)

  3. Boiling points? (Replies: 5)

  4. Boiling Points (Replies: 3)

  5. Boiling Point (Replies: 7)

Loading...