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The potential energy function for the fo...

The potential energy function for the force between two atoms in a diatomic molecule is approximately given by `U(x) =a/x^(12)-b/x^(6)` where a and b are constant and x is the distance between the atoms. Find the dissoociation energy of the molecule which is given as `D=[U(x- infty)-U_(at equilibrium)]`

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