//clc()
mH2 = 100;//kg
NH2 = mH2/2.016;
NFe = 3 * NH2 / 4;
mFe = NFe * 55.85;
disp("kg",mFe,"(a)mass of iron required = ")
NH2O = NH2 ;
mH2O = NH2O * 18;
disp("kg",mH2O,"mass of steam required =")
V1 = 22.4143;//m^3/kmol;
V = V1 * NH2;
disp("m^3",V,"Volume of hydrogen = ")