$.$ In the Deacon process for the manufacture of chlorine, HCl and O$2$ react to form Cl$2$ and

H$2$O$.$ Sufficient air $(21$ mole$\%$O$2,79\%$N$2)$ is fed to provide $35\%$ excess oxygen, and the

fractional conversion of HCl is $85\%.$ Calculate the mole fractions of the product stream

components.