学籍番号 名 科目名 前 課 物質工学演習 物理関連演習 第 2 回 題 別紙参考資料を参考にして，下線部分を和訳しなさい．ま た，問題に答えなさい（日本語で良い）． The net potential energy EN between two adjacent ions is sometimes represented by the expression EN = − µ ¶ C r + D exp − r ρ (1) in which r is the interionic separation and C, D, and ρ are constants whose values depend on the specific material. 1. Derive an expession for the bonding energy E0 in terms of the equilibrium interionic separation r0 and the constants D ans ρ using the following procedure: (A) Differentiate EN with respect to r and set the resulting expression equal to zero. (B) Solve for C in terms of D, ρ, and r0 . (C) Determine the expression for E0 by subsittution for C in Equation (1). 2. Derive another expression for E0 in terms of r0 , C, and ρ using a procedure analogous to the one outlined in part 1. 和訳： 解答：
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