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+
+clc
+//Initialzation of variables
+kb = 1.38*10^-16 // g-cm^2/sec^2-K
+T = 310 //Kelvin
+Mu = 0.01 // g/cm-sec
+R0 = 2.5*10^-8 //cm
+d = 30*10^-8 //cm
+//Calculations
+D = (kb*T/(6*%pi*Mu*R0))*(1+((9/8)*(2*R0/d)*(log(2*R0/d)))+((-1.54)*(2*R0/d)))//cm^2/sec
+//Results
+printf("The diffusion coefficient is %.8f cm^2/sec",D)