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11.22.11 discussion key

# 11.22.11 discussion key - Discussion Section Problem...

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Discussion Section Problem 11.22.11 1) N-hexatriene 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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