1.The power plant is burning natural gas with a nitrogen content of 5% at a rate of 6 kg/hr. 95% of nitrogen in the fuel is converted into NO2 during the combustion process. Flue gas containing NO2is then treated by an air pollution control equipment with 85% efficiency. Determine the annual emission rate of NO2 leaving the air pollution control device.
2.Consider a highway section where traffic is stationary, all trucks travel at speed s and cars at speed v. If aerial surveillance revealed that trucks were a fraction p of the vehicles on a photograph, what would be the fraction of trucks entering the section?