Q1: 1000 kg of C2H6 is burned in a furnace with 20,000 kg of air. (a) Calculate the composition of flue gas (including N2 and unreacted O2) [7 marks] (b) How much excess air has been calculated? [7 marks] (c) If CO2 is captured and removed, determine the amounts (in Kgs) of remaining gases? [6 marks]