calculate the flow rate of air necessary to deliver the requiredamount of oxygen.b. Under the conditions in part a, combustion of methane wasnot complete as a mixture of CO2(g)andCO(g)was produced.It was determined that 95.0% of the carbon in the exhaust gaswas present in CO2•The remainder was present as carbon inCO. Calculate the composition of the exhaust gas in terms ofmole fraction of CO, CO2, O2, N2, and H20. Assume CH4iscompletely reacted and N2 is unreacted.142. A steel cylinder contains 5.00 mol graphite (pure carbon) and5.00 mol O2. The mixture is ignited and all the graphite reacts.Combustion produces a mixture of CO gas and CO2gas. Afterthe cylinder has cooled to its original temperature,it is foundthat the pressure of the cylinder has increased by 17.0%. Calcu-late the mole fractions of CO, CO2,and O2in the final gaseousmixture.143. The total mass that can be lifted by a balloon is given by the dif-ference between the mass of air displaced by the balloon and themass of the gas inside the balloon. Consider a hot-air balloonthat approximates a sphere 5.00 m in diameter and contains airheated to 65°C. The surrounding air temperature is 21°C. Thepressure in the balloon is equal to the atmosphericpressure,which is 745 torr.
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