PS12-08-Solution - Chem 442 Homework Set #12 Friday,...

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Chem 442 Homework Set #12 Friday, November 21, 2008 1) McQ&S, 15-9 () ( ) ( ) 81 9 12 8 15 1 9 3 2 02 3 1 3 12 2 1 1 34 8 3 31 5 1 58 2 2 11 6.25 10 1.6 10 1, 3 2.998 10 / 2.461 10 121.8 10 3 16 3 8.854 10 6.626 10 2.998 10 / 3 6.25 10 16 2.461 10 1 1.203 10 1. R As s gg cm s vs m hc g A vg CJ m J s m s s s Cm τ λ ε μ π 3 −− == = × × × = × × = ×⋅ × × × = 29 097 10 Cm × 2) Assume that the infrared dipole transition moment for HCl is the same as the value in problem 15-9. Calculate the radiative lifetime for the v =1 Æ v = 0 transition at 2980cm -1 . This is one reason why IR radiant sources give off “heat” for a long time. ( ) ( ) 10 1 3 1 1 21 3 R 2 3 1 3 12 2 1 1 34 8 3 3 1 2.997925 10 2980 8.834 10 1 1 because vibrational levals are nondegenerate 3 16 3 8.854 10 6.626 10 2.998 10 / 1 1 1.203 16 8.834 10 1 s vc m s cm hc g Av g J s m s s 3 × = × × × = × 58 2 2 5 10 1.15 10 R s × PS #12 – Solutions - 1 -
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3) McQ&S, 15-23 The selection rules are v1 . Δ =±
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This note was uploaded on 02/12/2011 for the course CHEMISTRY 442 taught by Professor Lizzy during the Spring '10 term at Hanoi University of Technology.

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PS12-08-Solution - Chem 442 Homework Set #12 Friday,...

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