PhySci quiz (intermolecular force)

• Intermolecular force,


  often abbreviated to IMF, are the attractive force and repulsive forces between the molecules of a substance.
• Boiling point


  the temperature at which the substance transitions from a liquid to the gaseous phase
• Melting point


  the point at which materials changes from a solid to a liquid.
• Viscosity 


  the measure of the liquid’s resistance to flow.
• Surface tension


  is the tendency of liquid surfaces at rest to shrink into the minimum surface area possible
• DIPOLE-DIPOLE INTERACTIONS


  occur when the partial charges formed within one molecule are attracted to an opposite partial charge in a nearby molecule.
• Dipole


  is a molecule that has both positive and negative region.
• ion-dipole interaction 


  is the intermolecular force of attraction between a charge ion (cation or anion) and a molecule. The strength of this interaction depends on: -size of the polar molecule -the size and charge of an ion
• -size of the polar molecule

  -the size and charge of an ion


  The strength of this ion-dipole interaction depends on:
• anion and cation


  two charge of ion
• anion


  negative ion charge called
• cation


  positive ion charge called?
• ION-INDUCED DIPOLE INTERACTIONS


  In this type of interaction, a non-polar molecule is polarized by an ion near it. The non polar molecule, upon obtaining a charge, behave as induced dipole.
• DIPOLE INDUCED DIPOLE INTERACTIONS


  In this type of interaction, a non-polar molecule are transformed into induced dipoles due to the presence of a polar molecule nearby.
• LONDON DISPERSION FORCE/ VAN DER WAALS FORCE


  It operates for a short distance and it is the weakest force. This kind of force arises due to the movement of electrons thus creating a temporary positive and negative charged ions.
• molecules


  Atoms can form stable units called __ by sharing or transfer of electrons.
• Intramolecular 


  (within molecules) forces hold atoms together in a molecule.
• intermolecular forces


  
 are attractive forces between molecules
• boiling point, melting point, viscosity, surface tension


  4 imf affected properties
• DIPOLE-DIPOLE INTERACTIONS, ION-DIPOLE INTERACTIONS, ION-INDUCED DIPOLE INTERACTIONS, DIPOLE INDUCED DIPOLE INTERACTIONS, and LONDON DISPERSION FORCE/ VAN DER WAALS FORCE


  what are the 5 types of intermolecular force