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Discussion Section Problem 11.22.11
1)
Nhexatriene is an organic chromophore with the formula:
The three double bonds contribute six electrons that are delocalized over the
conjugated chain, which is about 5.8 Angstroms in length. Assume the energies of six
electrons can be calculated using the particle in the box model.
a)
Calculate the energy of the highest filled energy level.
Solution: This is n=3.
b)
Calculate the energy of the lowest unfilled energy level.
Solution: This is n=4.
c)
Calculate the energy change
Δ
E when the electron makes a transition from the
highest filled energy level to the lowest unfilled energy level.
Solution:
d)
Calculate the frequency and wavelength of light that is absorbed by this electron
transition:
Solution:
and
2)
Assume argon atoms translate in one dimension.
a)
What is the AVERAGE translational kinetic energy per argon atom? Assume
T=1000K
Solution: The average energy per argon atom for translatino in one dimension
is
b)
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This note was uploaded on 01/18/2012 for the course CHEM 152A taught by Professor Chiu during the Fall '12 term at University of Washington.
 Fall '12
 Chiu
 Electron, pH

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