Intermolecular Forces

London Dispersion:

The London dispersion force is the weakest intermolecular force. The London dispersion force is a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles. This force is sometimes called an induced dipole-induced dipole attraction. London forces are the attractive forces that cause nonpolar substances to condense to liquids and to freeze into solids when the temperature is lowered sufficiently.



Dipole-Dipole:

Many molecules contain bonds that fall between the extremes of ionic and covalent bonds. The difference between the electronegativities of the atoms in these molecules is large enough that the electrons aren't shared equally, and yet small enough that the electrons aren't drawn exclusively to one of the atoms to form positive and negative ions. The bonds in these molecules are said to be polar, because they have positive and negative ends, or poles, and the molecules are often said to have a dipole moment.



Hydrogen Bond:

A hydrogen bond is the attractive interaction between a hydrogen atom and an electronegative atom, such as N, O, or Fl.The hydrogen bond is often described as a strong electrostatic dipole-dipole interaction.


What intermolecular forces are displayed in C3H8O?
London Dispersion