Response Assignment | Homework Help Websites
January 15th, 2019
Chapter 2
Working more than just the assigned problems will be helpful for learning the material.
The following questions are assigned to be answered for this course.
30 points
Both correctness and completeness will be used in the evaluation of your submission.
- We live in an atmosphere of 21% oxygen. A match burns in less than a minute, a fireplace consumes a small pine log in about 20 minutes, and we exhale about 15 times a minute. Life on Earth would be very different if the oxygen concentration were half as high. (ie 10% instead of ~21%)
List at Two differences if the oxygen concentration on earth were at this reduced level what it currently is.(Assume that it is the nitrogen concentration increased appropriately)
1).
2)
- Calculate the volume of air in liters that you might inhale (and exhale) in an 8-hour working day. Assume that each breath has a volume of about 0.5 L, and that you are breathing 15 times a minute. (if possible, show your calculation)
- From this calculation (above), you can see that breathing exposes you to large volumes of air. Identify 3 sources of particulate matter found in air
1.
2.
3.
- A carbon Monoxide detector will go off if the concentration of CO is 400ppm or greater for a period of 4-15 minutes.
- Express 400 ppm as a percent
- Why is carbon monoxide (CO) considered to be an air pollutant?
