Engineering Homework Help

Help me study for my Chemical Engineering class. I’m stuck and don’t understand.

For Problems 7 through 9

6.Workers in a fiberglass boat manufacturing building are exposed to styrene, a listed Hazardous Air Pollutant, and exhausted through two 10,000 cfm stacks terminating just above the building roof.  You will be doing the modeling to predict the concentration onsite and in the surrounding neighborhood.

7.   The model input requires the molecular weight of the exiting gas. What value do you enter?

8.   If the styrene concentration inside the building were to double, what would happen to the predicted ground level concentration at 100 meters?

9.   What effect will the building structure have on the predicted concentration/distance curve?