Amixture of propane (caha) and butane (ch) is burned with excess oxygen. the product gas analysis is found to contain 37 mol % co , and 47 mol % h20 and the remainder 02 basis. all the fuel mixture is completely burnt. a) draw and clearly labeled flow diagram for the process. perform a degree of freedom analysis for this process with all the terms clearly specified and state your conclusion. [5 on a wet on points] b) considering 100 mol/s of the reactor outlet stream as the basis, calculate the ratio of moles of propane to butane in the fuel. [10 points] calculate the composition of the product gas on a dry basis. [3 points c) d) calculate the percentage excess of oxygen.