(b)Describe the nature and origin of various forces existing between the atoms of a crystal.Explain the formation of a stable bond using the potential energy versus interatomicdistance curve.Assume that the potential energy of two particles in the field of each other is given byU(R) = - Rwhere A and B are constants.R9(i) Show that the particles form a stable compound forR= R. = (9B/A)/8(R, is equilibrium separation)i) Show that for stable configuration, the energy of attraction is nine times the energyof repulsion.8A(iii) Show that the potential energy of the system under stable configuration is9Re

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(b) Describe the nature and origin of various forces existing between the atoms of a crystal. Explain the formation of a stable bond using the potential energy versus interatomic distance curve. Assume that the potential energy of two particles in the field of each other is given by U(R) = -+ A B where A and B are constants. R (i) Show that the particles form a stable compound for R=R, = (9B/A)8 (Re is equilibrium separation) (ii) Show that for stable configuration, the energy of attraction is nine times the eneroy of repulsion. 8A (iii) Show that the potential energy of the system under stable configuration is 9Re

(b) Describe the nature and origin of various forces existing between the atoms of a crystal. Explain the formation of a stable bond using the potential energy versus interatomic distance curve. Assume that the potential energy of two particles in the field of each other is given by U(R) = -+ A B where A and B are constants. R (i) Show that the particles form a stable compound for R=R, = (9B/A)8 (Re is equilibrium separation) (ii) Show that for stable configuration, the energy of attraction is nine times the eneroy of repulsion. 8A (iii) Show that the potential energy of the system under stable configuration is 9Re

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