Physics - W.E.P. Question with Solution | TestHub

If potential energy function for the force between two atoms in a diatomic molecule is approximately given by$U\left(x\right)=\frac{\mathrm{a}}{x^8}-\frac{\mathrm{b}}{x^4}$, where$\mathrm{a}$and$\mathrm{b}$are constants in standard SI units and$x$is in metres. Find the dissociation energy of the molecule (in$\mathrm{J}$). [Take$\mathrm{a}=4 \mathrm{J} {\mathrm{m}}^8$and$\mathrm{b}=20 \mathrm{J} {\mathrm{m}}^4$]