Answer Happy

1. Air Pollution a. List the six criteria air pollutants. b. Which criteria air pollutant is no longer a significant air pollution problem in most of the U.S.? What intervention was responsible for its reduction in ambient air? c. What are the three inputs required for formation of photochemical smog? d. Describe a strategy that can be used to reduce ground-level ozone formation.
e. The equation for combustion of methane is given as follows: CH4 + 202 + 7.56 N2 → CO2 + 2 H20 +7.56 N2 i. What is the stoichiometric fuel-to-air ratio for this combustion reaction (i.e., the mass of fuel over the mass of air)? Be sure to take into account the masses of both O2 and N2 in the air. ii. If the actual fuel-to-air ratio is 0.1, will production of CO increase or decrease, as compared to the stoichiometric (theoretical) fuel-to-air ratio calculated above?