# Lennard-Jones potential graph w/ attractive/repulsive force

by destroyer130
Tags: force, graph, lennardjones, potential, w or
 P: 18 Based on this and the equation F = -d$\Phi$/dr. I can't visualize what is positive and negative force direction (what is positive direction). So is that just mean whenever the force between 2 molecules (+), it's repulsive; and whenever it's (-), it's attractive? Thanks for checking this out.
 Quote by destroyer130 Attachment 54775 Based on this and the equation F = -d$\Phi$/dr. I can't visualize what is positive and negative force direction (what is positive direction). So is that just mean whenever the force between 2 molecules (+), it's repulsive; and whenever it's (-), it's attractive? Thanks for checking this out.