// Exa 8.9 clc; clear; close; // Given data C = 0.82;// in kg H2 = .12;// in kg O2 = 0.02;// in kg a = C/12; b = H2/2; y = (32*(a+(0.5*b))-O2)/0.23; disp(y,"Minimum quantity of air in kg is");