Physical Chemistry 3: — Chemical Kinetics — - Christian-Albrechts ...

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Appendix D 281 or Ax=0 (D.47) The trivial and uninteresting solutions of this equation are 1 2 3 =0. The interesting solutions require that the matrix of coefficients A is singular, i.e., the determinant of coefficients has to vanish |A| =0 (D.48) This type of equations is encountered in eigenvalue problems.
Appendix D 282 D.6 Eigenvalue equations Consider a set of linear equations as considered in the previous section which can be writtenintheform Ax= x (D.49) where (1) A is an × -dimensional matrix, (2) is a scalar constant, called an eigenvalue of A ( is any one of the set of eigenvalues of A), and (3) x is an -dimensional column vector (which can in general be complex), called the eigenvector of A belonging to the particular eigenvalue. Eq. D.49 is called an eigenvalue equation. It has the following property: The multiplication of x by (and hence that of x by the matrix A) changes the length of x (by the factor ), but not the direction. I Eigenvalues and eigenvectors of the molecular Hamiltonian: The determination of eigenvalues and eigenvectors of the molecular Hamiltonian H, i.e., the “energy matrix”, or the matrix of the Hamilton operator b , is the most important problem in spectroscopy (in general, it is the key problem!!). I Secular equation and eigenvalues λ : Eq. D.49 can be rewritten as (A − I) x = 0 (D.50) In order not to obtain the trivial solutions 1 = 2 = 3 = =0, det (A − I) has to vanish, i.e., det (A − I) =0. This is the so-called characteristic equation or secular equation: |A − I| = ¯ The secular equation has roots which are called the eigenvalues. 11 − 12 1 21 22 − 2 . . . =0 (D.51) 1 2 − ¯ { 1 2 } (D.52)
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Physical Chemistry 3: — Chemical
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iii 2.7 Temperature dependence of r
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v 7.1.2 Formal kinetic model 149 7.
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vii 12 Photochemical reactions 241
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ix Preface This scriptum contains l
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xi Disclaimer Use of this text is e
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xiii I Figure 2: Organisational mat
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xv I Figure 6: Recommended textbook
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1.2 Time scales for chemical reacti
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1.2 Time scales for chemical reacti
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1.3 Historical events 6 I Empirical
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1.4 References 8 2. Formal kinetics
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2.1 Definitions and conventions 10
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2.2 Kinetics of irreversible first-
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2.2 Kinetics of irreversible first-
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2.3 Kinetics of reversible first-or
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2.3 Kinetics of reversible first-or
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2.4 Kinetics of second-order reacti
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2.4 Kinetics of second-order reacti
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2.5 Kinetics of third-order reactio
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2.6 Kinetics of simple composite re
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2.7 Temperature dependence of rate
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3.1 Determination of the order of a
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3.2 Application of the steady-state
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3.2 Application of the steady-state
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3.4 Generalized first-order kinetic
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3.5 Numerical integration 58 I Surv
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3.5 Numerical integration 60 2 ord
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3.5 Numerical integration 62 3.5.5
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3.5 Numerical integration 64 , Func
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3.6 Oscillating reactions* 66 3.6 O
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3.6 Oscillating reactions* 68 • B
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3.6 Oscillating reactions* 70 (5) S
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3.6 Oscillating reactions* 72 I Fig
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3.6 Oscillating reactions* 74 [X]
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3.7 References 76 4. Experimental m
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4.3 The discharge flow (DF) techniq
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4.3 The discharge flow (DF) techniq
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4.4 Flash photolysis (FP) 82 4.4 Fl
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4.4 Flash photolysis (FP) 84 I Figu
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4.6 Stopped flow studies 86 4.6 Sto
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4.8 Relaxation methods 88 4.8 Relax
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4.9 Femtosecond spectroscopy 90 I F
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4.9 Femtosecond spectroscopy 92 I F
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4.10 References 94 5. Collision the
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5.1 Hardspherecollisiontheory 96
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5.1 Hardspherecollisiontheory 98 I
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5.1 Hard sphere collision theory 10
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5.2 Kinetic gas theory 102 I The 1D
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5.2 Kinetic gas theory 104 I Figure
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5.2 Kinetic gas theory 106 5.2.2 Th
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5.2 Kinetic gas theory 108 • Resu
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5.3 Transport processes in gases 11
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5.4 Advanced collision theory 116 W
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5.4 Advanced collision theory 118 I
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5.4 Advanced collision theory 120 5
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5.4 Advanced collision theory 126 a
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5.4 Advanced collision theory 130 (
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5.4 Advanced collision theory 136
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5.4 Advanced collision theory 138 6
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6.2 Polyatomic molecules 140 I Figu
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6.2 Polyatomic molecules 142 I Mode
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6.3 Trajectory Calculations 144 •
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6.3 Trajectory Calculations 146 7.
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7.1 Foundations of transition state
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7.2 Applications of transition stat
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7.3 Thermodynamic interpretation of
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7.4 Transition state spectroscopy 1
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8.1 Experimental observations 176 (
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8.2 Lindemann mechanism 178 8.2 Lin
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8.2 Lindemann mechanism 180 I Half-
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8.3 Generalized Lindemann-Hinshelwo
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8.4 The specific unimolecular react
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8.5 Collisional energy transfer* 20
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8.6 Recombination reactions 202 8.7
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9.1 Chain reactions and chain explo
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9.1 Chain reactions and chain explo
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9.2 Heat explosions 208 • positiv
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9.2 Heat explosions 210 (3) We can
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9.2 Heat explosions 212 9.2.3 Explo
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9.2 Heat explosions 214 10. Catalys
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10.1 Kinetics of enzyme catalyzed r
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10.2 Kinetics of heterogeneous reac
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11.1 Qualitative model of liquid ph
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Page 277 and 278: Appendix B 262 Appendix A: Useful p
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Page 289 and 290: Appendix D 274 D.2 Special matrices
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Page 301 and 302: Appendix E 286 Appendix E: Laplace
Page 303 and 304: Appendix F 288 Appendix F: The Gamm
Page 305 and 306: Appendix G 290 Appendix G: Ergebnis
Page 307 and 308: Appendix G 292 I Anschauliche Bedeu
Page 309 and 310: Appendix G 294 Ergebnis: = 1 X
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Page 319 and 320: Appendix G 304 G.8 Zustandssumme f
Page 321 and 322: Appendix G 306 G.9 Zustandssumme f
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Physical Chemistry 3: — Chemical Kinetics — - Christian-Albrechts ...

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