DEC 2019 QUESTION 4 (CO2, PO2, C3, C4) Liquid ethanol (C_(2)H_(5)OH) is completely burned in a furnace with 200% excess air as in the given equation. The air stream enters a combustion chamber at 100^(@)C,1atm and the ethanol enters at 25^(@)C,1atm. The produced gas emerges at 500^(@)C,1atm. Take 100mole//min of ethanol as the basis of calculation. C_(2)H_(5)OH(l)+(7)/(2)O_(2)(g)rarr2CO_(2)(g)+3H_(2)O(l) a) Solve mole balance for each component in the feed and product streams. (8 marks) b) Calculate the required heat transfer rate to or from the combustion chamber in kJ//s using heat of formation technique. Take the element species of reactant and product at 25^(@)C and 1atm as the reference state. (13 marks)