Answer to Question #272997 in Physics for Ciki

Question

In a certain solid, the potential energy of a pair of atoms is given by:

𝐸(𝑟) = − 𝐴/𝑟⁶ + 𝐵𝑒 ^{(− 𝑟 / 𝜌 )}

At an equilibrium atomic spacing of 0.15 nm, the binding energy is 10 % less than would be given for the attractive part alone. Calculate the characteristic length 𝜌.

Answer 1

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