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Question: i posted number 1 and 2 but i also posted...

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I posted number 1 and 2 but I also posted the answers to them. I just need help with number 2 C, that’s why I uploaded both numbers with answers. Number 2c wants us to compare number 1 and 2 !


The net potential energy between two adja- cent ions, En may be represented by the sum of Equations 2.8 and 2.9; that is, A B Calculate the bonding energy Eo in terms of the parameters A, B, and n using the follow- ing procedure: 1. Differentiate EN with respect to r, and then set the resulting expression equal to zero, since the curve of Es versus r is a minimum at Eo 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 sub- stitution of ro into Equation 2.11. 2. For an Na Cl ion pair, attractive and re- pulsive energiesEx and E. respectively depend on the distance between the ions r. according to 1:436 7.32 x 10 For these expressions, energies are expressed in electron volts per Na:-CI pair, and r is the distance in nanometers. The net energy Ex is just the sum of the two expressions above. (a) Superimpose on a single plot EN. ER. and Ea versus r up to 1.0 nm. (b) On the basis of this plot,determine (i) the equilibrium spacing fo between the Na and CI ions, and (ii) the magnitude of the bond ing energy Eo between the two ions (c) Mathematically determine the to and values using the solutions to Problem I and compare these with the graphical results Irom part (o)
Mate《ial Sinc Now clifferen 41 ating with respet 3 to E·A+tractive erega of a Nat-cl- ; on Pair repulsive DependS on me oistance beuoren the ions We have the ne+ enegy-:En +EH back
-그 5) Bosed on tne plot abore ofe Eo
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