Van Der Waals Forces
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6 Terms
What are Van Der Waals forces
Induced dipoles between molecules
From 1-3 with 1 being strongest, where does Van Der Waals forces rank in strength of intermolecular forces
3
How does a Van Der Waals force occur (4 bullet points)
Electrons in a charge cloud are randomly moving
During this movement, electrons could be more on one side of the atom/molecule than the other
this causes a temporary dipole to occur
this create delta positive and delta minus charges to occur, creating attraction
Why is this force temporary
Electron clouds are moving constantly
How does the strength of Van Der Waals forces depend on Mr
The larger the Mr, the more VDW forces
How does chain molecules experience VDW forces
Straight chain molecules experience stronger VDW force since they line up and pack closer together, reducing distance over which the force acts.
Note 
Flashcards (51)