The two atoms in a diatomic molecule exert an attractive force on each other at large distances and.

The two atoms in a diatomic molecule exert
an attractive force on each other at large distances and a repulsive force at
short distances. The magnitude of the force between two atoms in a diatomic
molecule can be approximated by the Lennard Jones force, or , where r is the
separation between the two atoms, and  and F0 are
constant. For an oxygen molecule (which is diatomic) F0 = 9.60 X 10-11
N and  = 3.50 X 10-11
m. (a) Integrate the equation for F(r) to determine the potential energy U(r)
of the oxygen molecule. (b) Find the equilibrium distance r0 between the two
atoms, (c)
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The two atoms in a diatomic molecule exert
an attractive force on each other at large distances and a repulsive force at
short distances. The magnitude of the force between two atoms in a diatomic
molecule can be approximated by the Lennard Jones force, or , where r is the
separation between the two atoms, and  and F0 are
constant. For an oxygen molecule (which is diatomic) F0 = 9.60 X 10-11
N and  = 3.50 X 10-11
m. (a) Integrate the equation for F(r) to determine the potential energy U(r)
of the oxygen molecule. (b) Find the equilibrium distance r0 between the two
atoms, (c) Graph F(r) and U(r) between 0.9 r0 and 2.5 r0.

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