Sep 2 - Useful Information 1 eV = 1.602 x 10-19 J c = 2.998...

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1 eV = 1.602 x 10 -19 J c = 2.998 x 10 8 m/s h = 6.626 x 10 -34 J s mass of baseball = 142.5 g 1 mph = 0.44704 m/s Useful Information
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Why is the system quantized? Boundary Conditions ! The Heisenberg Uncertainty Principle requires that a particle confined to a finite region must possess a finite energy
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Solution to the "particle in a box problem" Note: only certain wavefunctions and energies are allowed ! The particle of the box is quantized. Also notice: the particle cannot have E = 0. We say it has a finite lowest irremovable energy. This is also called the zero-point energy.
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PHYSICAL CHEMISTRY: QUANTA, MATTER, AND CHANGE 2E| PETER ATKINS| JULIO DE PAULA | RONALD FRIEDMAN ©2014 W. H. FREEMAN D COMPANY PHYSICAL CHEMISTRY: THERMODYNAMICS, STRUCTURE, AND CHANGE 10E | PETER ATKINS | JULIO DE PAULA ©2014 W. H. FREEMAN AND COMPANY CHAPTER 8: FIGURE 8A.2
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PHYSICAL CHEMISTRY: QUANTA, MATTER, AND CHANGE 2E| PETER ATKINS| JULIO DE PAULA | RONALD FRIEDMAN ©2014 W. H. FREEMAN D COMPANY PHYSICAL CHEMISTRY: THERMODYNAMICS, STRUCTURE, AND CHANGE 10E | PETER ATKINS | JULIO DE PAULA ©2014 W. H. FREEMAN AND COMPANY
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