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//Calculate the Root Mean Square distance traveled by a urea molucule
//Example 21.2
clc;
clear;
D=1.18*10^-9; //Diffusion coefficient of Urea in m^2 s^-1
t=1*60*60; //Diffusion time in second
meanx=sqrt(2*D*t)*1000; //Root mean square distance in mm
printf("Root mean square distance traveled = %.1f mm",meanx);
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