Question

Problem 2.18 The net potential energy between two adjacent ions, EN, may be represented by Where A, B, and n are constants whose values depend on the particular ionic system Calculate the bonding energy Eo in terms of the parameters A, B, and n using the following procedure: (1) Differentiate EN with respect to r, and then set the resulting expression equal to zero, since the curve of Ev versus r is a minimum at Eg. (2) Solve for r in terms of A, B, and n, which yields ro, the equilibrium interionic spacing (3) Determine the expression for Eo by substitution of ro into the above equation for EN. Which of the following equations represents the expression for E0? Ad-n) 5) An/l-n) 스) A 2/(2-n) An/2-n) A/4-n) RA)-)

Answer 1

dE [1 ]찌 0 3 ヒ 0