Problem 87PE

The alveoli in emphysema victims are damaged and effectively form larger sacs. Construct a problem in which you calculate the loss of pressure due to surface tension in the alveoli because of their larger average diameters. (Part of the lung’s ability to expel air results from pressure created by surface tension in the alveoli.) Among the things to consider are the normal surface tension of the fluid lining the alveoli, the average alveolar radius in normal individuals and its average in emphysema sufferers.

Week 2: Data Confidence of Distributions Using Mean, and Standard Deviations What is measurement distribution, and why is it important • In experiments in analytical chemistry, we are trying to find the true value of the subject of observation • Measurement distribution is when a number is reported as a true value plus or minus some error o We can never know the true value of a distribution, but we can test in a way where we get close o The bigger the range of numbers, the less precise