- #1

pinkybear

- 10

- 0

## Homework Statement

The binding energy of a two-particle system is defined as the energy required to separate the two particles from their state of lowest energy to

*r=infinity*. The potential energy of the two atoms in a diatomic (two-atom) molecule can be written

U(r)=-a/(r^6)+b/(r^12)

where

*r*is the distance between the two atoms and

*a*and

*b*are positive constants.

Determine the binding energy. (in terms of a and b)

## Homework Equations

## The Attempt at a Solution

I don't even know where to start.. do i take the derivative of U(r) and find the minimum value of r and plug that in which would be the binding energy?