Coke can be converted into co—a fuel gas—in the reaction c o 2 ( 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/lbm 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). calculate the percentage conversion of the carbon in the coke.