The reason for some absorbing compounds being fluoresce but others are not is to be stated. Concept introduction: Fluorescence is a term used to define the members of the luminescence family. In the luminescence family, the molecules of a substance can produce their own light with the help for electronically excited states which can be formed by chemical,physical or mechanical mechanism.

Question

The table includes macrostates characterized by 4 energy levels (&) that are equally spaced but with different degrees of occupation. a) Calculate the energy of all the macrostates (in joules). See if they all have the same energy and number of particles. b) Calculate the macrostate that is most likely to exist. For this macrostate, show that the population of the levels is consistent with the Boltzmann distribution. macrostate 1 macrostate 2 macrostate 3 ε/k (K) Populations Populations Populations 300 5 3 4 200 7 9 8 100 15 17 16 0 33 31 32 DATO: k = 1,38×10-23 J K-1

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Chapter 15, Problem 15.5QAP

Interpretation Introduction

Interpretation:

The reason for some absorbing compounds being fluoresce but others are not is to be stated.

Concept introduction:

Fluorescence is a term used to define the members of the luminescence family. In the luminescence family, the molecules of a substance can produce their own light with the help for electronically excited states which can be formed by chemical,physical or mechanical mechanism.

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The table includes macrostates characterized by 4 energy levels (&) that are equally spaced but with different degrees of occupation. a) Calculate the energy of all the macrostates (in joules). See if they all have the same energy and number of particles. b) Calculate the macrostate that is most likely to exist. For this macrostate, show that the population of the levels is consistent with the Boltzmann distribution. macrostate 1 macrostate 2 macrostate 3 ε/k (K) Populations Populations Populations 300 5 3 4 200 7 9 8 100 15 17 16 0 33 31 32 DATO: k = 1,38×10-23 J K-1

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