Q:4 For an Na Cl ion pair, attractive and repulsive energies E A and ER respectively, depend on the distance between the ions r, according to EA= - 1.436/r ER= 7.32* 10%r Subject : Materials Engineering By Iman Mashkoor Thermal Mechanical Engineering Department For these expressions, energies are expressed in electron volts per pair Na*Cl, and r is the distance in nanometers. The net energy EN is just the sum of the two expressions above. (a) Superimpose on a single plot EN, EA , ER and versus r up to 1.0 nm. (b) On the basis of this plot, determine (i) the equilibrium spacing ro between the Na* and Cl ions, and (ii) the magnitude of the bonding energy E, between the two ions. (c) Mathematically determine the ro and values using the solutions to Problem 2.14 and compare these with the graphical results from part (b).

Q:4 For an Na Cl ion pair, attractive and repulsive energies E A and ER respectively, depend on the distance between the ions r, according to EA= - 1.436/r ER= 7.32* 10%r Subject : Materials Engineering By Iman Mashkoor Thermal Mechanical Engineering Department For these expressions, energies are expressed in electron volts per pair NaCl, and r is the distance in nanometers. The net energy EN is just the sum of the two expressions above. (a) Superimpose on a single plot EN, EA , ER and versus r up to 1.0 nm. (b) On the basis of this plot, determine (i) the equilibrium spacing ro between the Na and Cl ions, and (ii) the magnitude of the bonding energy E, between the two ions. (c) Mathematically determine the ro and values using the solutions to Problem 2.14 and compare these with the graphical results from part (b).

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.71P: 1.71 The thermal conductivity of silver at 212°F is 238 Btu/h ft °F. What is the conductivity in SI...

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