Air pollution

29) A 200-MW power plant has a 100-m stack with raidus 2.5 m, flue gas exit velocity 13.5 m/s, and gas exit temperature 145 degrees Celsius. Ambient temperature is 15 degrees Celsius, windspeed at the stack is 5 m/s, and the atmosphere is stable, Class E, with a lapse rate of 5 C/km. if it emits 300 g/s of SO2, estimate the concentration at a ground level at a distance of 16 km directly downwind.

Estimate of NOx concentration given emission volume and wind speed.

36) A freeway has 10,000 vehicles per hour passing a house 200 m away. Each car emits an average of 1.5 g/mi of NOx, and winds are blowing at 2 m/s across the freeway towards the house. Estimate the NOx concentration at the house on a clear summer day near noon (assuming that NOx is chemical stable).

Arrange the following

Arrange the elements below into 3 different groups that have similar chemical properties. cesium chlorine magnesium barium potassium lithium bromine sodium fluorine calcium

The gas in a sealed bag of Cheetos...

The gas in a sealed bag of Cheetos™ has a volume of 500 mL in Pueblo where the atmospheric pressure is 600 mm of Hg. You take this bag to the top of Pikes Peak where the pressure is 420 mm of Hg. Assuming the temperature on the Peak is the same as Pueblo (hot day on the Peak!), what is the volume of the gas in the Cheetos™ bag on the Peak? Show your work.

Balance/moles

Balance this equation: H2(g) + N2(g) --> NH3(g) How many moles of ammonia ( NH3(g)) could be produced from 5 moles of H2(g) and 20 moles of N2(g) ?