The predictable number of IR-active vibrational modes of CH 3 D , which is formed by the replacement of one hydrogen atom of methane is to be stated. Concept introduction: A molecule is vibrated in number of methods. Every method is known as the mode of vibration. The modes of vibration may be Raman or IR active. In order to observe a mode in the IR spectrum, the permanent dipole moment must be changed.

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20. The Brusselator. This hypothetical system was first proposed by a group work- ing in Brussels [see Prigogine and Lefever (1968)] in connection with spatially nonuniform chemical patterns. Because certain steps involve trimolecular reac tions, it is not a model of any real chemical system but rather a prototype that has been studied extensively. The reaction steps are A-X. B+X-Y+D. 2X+ Y-3X, X-E. 305 It is assumed that concentrations of A, B, D, and E are kept artificially con stant so that only X and Y vary with time. (a) Show that if all rate constants are chosen appropriately, the equations de scribing a Brusselator are: dt A-(B+ 1)x + x²y, dy =Bx-x²y. di

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Question

Chapter 14, Problem 14.49E

Interpretation Introduction

Interpretation:

The predictable number of IR-active vibrational modes of CH3D, which is formed by the replacement of one hydrogen atom of methane is to be stated.

Concept introduction:

A molecule is vibrated in number of methods. Every method is known as the mode of vibration. The modes of vibration may be Raman or IR active. In order to observe a mode in the IR spectrum, the permanent dipole moment must be changed.

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20. The Brusselator. This hypothetical system was first proposed by a group work- ing in Brussels [see Prigogine and Lefever (1968)] in connection with spatially nonuniform chemical patterns. Because certain steps involve trimolecular reac tions, it is not a model of any real chemical system but rather a prototype that has been studied extensively. The reaction steps are A-X. B+X-Y+D. 2X+ Y-3X, X-E. 305 It is assumed that concentrations of A, B, D, and E are kept artificially con stant so that only X and Y vary with time. (a) Show that if all rate constants are chosen appropriately, the equations de scribing a Brusselator are: dt A-(B+ 1)x + x²y, dy =Bx-x²y. di

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