clear clc //Lets say F(Ri)/F=F_ri F_50=0.3;F_100=0.4;F_200=0.3; //The time required(min)for 3 size of particles is t_50=5;t_100=10;t_200=20; //Cosidering solids to be in plug flow with tp=8 min tp=8; //1-XBavg=[1-XB(50 um)]F(50 um)/F+ [1-XB(100 um)]F(100 um)/F+....... //Because for 3 sizes of particles,R1:R2:R3=t1:t2:t3 //From eqn 25.23,[1-XB(Ri)]=(1-tp/t(ri))^3 a=((1-(tp/t_50))^3)*F_50;b=((1-(tp/t_100))^3)*F_100;c=((1-(tp/t_200))^3)*F_200; g=[a,b,c]; sum1=0; for p=1:3 if g(p)>0 sum1=sum1+g(p); end end f_converted=1-sum1; printf("\n The fraction of solid converted equals %f ",f_converted)