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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Consider the following energy-level diagrams, modified from Problem P13.9 by the addition of another excited state with energy of : 600. cm-1.

a. At what temperature will the probability of occupying the second energy level be 0.15 for the states depicted in part (a) of the figure?
b. Perform the corresponding calculation for the states depicted in part (b) of the figure. (Hint: You may find this problem easier to solve numerically using a spreadsheet program such as Excel.)
Problem P13.9
Consider the following energy-level diagrams:

a. At what temperature will the probability of occupying the second energy level be 0.15 for the states depicted in part (a) of the figure?
b. Perform the corresponding calculation for the states depicted in part (b) of the figure. Before beginning the calculation, do you expect the temperature to be higher or lower than that determined in part (a) of this problem? Why?
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