The plot shows the potential energy of an atom which is bound to some large molecule as a function its (one dimensional) distance. An electronvolt (eV) is an energy unit (about 10-19 Joule), and a nanometer (nm) is 10-9 meters. Consider the molecular vibration.dynamically generated plot At what distance does the atom have maximum kinetic energy? What is the minimum kinetic energy the atom needs to break free from the molecule? As it vibrates, at a distance of 1.1 nm, the atom is found to have a kinetic energy of 1.8 eV. What is the maximum distance it can reach?