Coke can be converted into CO—a fuel gas—in the reaction 

CO₂ (g) + C (s) → 2 CO (g)

A coke that contains 84% carbon by mass and the balance noncombustible ash is fed to a reactor with a stoichiometric amount of CO₂. The coke is fed at 77°F, and the CO₂ enters at 400°F. Heat is transferred to the reactor in the amount of 5859 Btu/lb_m coke fed, the gaseous products and the solid reactor effluent (the ash and unburned carbon) leave the reactor at 1830°F. The heat capacity of the solid is 0.24 Btu/(lbm∙°F).

(a) Calculate the percentage conversion of the carbon in the coke.

(b) The carbon monoxide produced in this manner can be used as a fuel for residential home heating as can the coke. Speculate on the advantages and disadvantages of using the gas. (There are several of each)