Gas is sampled at 1 bar pressure from the exhaust manifold of an internal combustion engine and analyzed. the mole fractions of species in the exhaust are: h2o=0.0468; co2=0.0585; o2=0.123; n2=0.712 (d) the engine has a displaced volume of 2 liters. estimate approximately the percentage by which the fuel flow rate would be increased if this engine were operated at its maximum load at this same speed (2000 rev/min). explain briefly what limits the equivalence ratio at maximum load. hint use equivalent fuel to air ratio of 0.7 at engine maximum load.