Does Vapor Pressure decrease as intermolecular forces increase???

Answer 1

yes.

Answer 2

Thanks, i had my doubts! I was also wondering how i can determine which ionic solid will have the least melting point. Do i look at the intermolecular forces, or do i need to look else where for my answer???

Answer 3

ionic solids? I would look at lattice energies.
http://www.tulane.edu/~bmitche/book/mptab.html