Xenon crystallises into an fcc lattice in its solid state. Xe atoms interact via a Lennard-Jonespair potential124€ [(9) ¹²¹ - (G)]Upair (r): = 4€(a) Derive an expression for the lattice energy per atom in solid fcc Xe considering only thefirst nearest neighbours.(b) Give expressions, in terms of o, for (i) the equilibrium spacing of nearest neighbours ₁,(ii) the lattice parameter a, and (iii) the density p of solid Xe denoting the mass of theXe atom as mxe.

(a) To calculate the lattice energy per atom in solid fcc Xe considering only the first nearest…

Answered: Xenon crystallises into an fcc lattice…

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