A mix by volume of the following gases is burnt: A. Calculate the air requirement for the combustion of 1m3 of this gas in ordinary air. I [15 marks] B. What is the gross calorific value of 1m3 of this mix? [25 marks] Given that: C3H8+5O2=3CO2+4H2OH2+1/2O2=H2OC2H6+7/2O2=2CO2+3H2OCH4+2O2=2H2O+CO2CO(g)+1/2O2=CO2(g)H=1908.71KJ/molH=242.0KJ/molH=1428.0kJ/molH=802.3KJ/molH=284.01kJ The heat of condensation of water is 40.668KJ/mol,Cp of liquid water is