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//Example number 1.4, Page number 11
clc;clear;
close;
//Variable declaration
N=6.02*10**26; //Avagadro Number
e=1.6*10**-19; //charge(coulomb)
epsilon0=8.85*10**-12;
r0=0.324*10**-9; //equilibrium distance(m)
A=1.75; //madelung constant
n=8.5; //repulsive exponent value
//Calculations
U0=(A*e/(4*%pi*epsilon0*r0))*(1-1/n);
U=U0*N*e/10**3; //binding energy(kJ/kmol)
//Result
printf( "binding energy is %.1e kJ/mol",U)
//answer in the book is wrong
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