lecture1 - 5.61 F all 2007 Lecture #1 page 1 Quantum...

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5.61 Fall 2007 Lecture #1 page 1 Quantum Mechanics – Historical Background Physics in the Late 19 th Century (prior to quantum mechanics (QM)) Atoms are basic constituents of matter Newton’s Laws apply universally The world is deterministic According to classical mechanics (CM): Given initial positions r ! 0 and velocities v ! 0 , and given all forces F ! ( ) t all the future can be predicted! ! F d ! v ! v ! F ! a = m ! v t d v ! = ( ) t = dt = m dt ! v t 0 m 0 ! r ( ) t = ! r ! r 0 d ! r ! t r ! v dt ! v d = = dt t 0 Physics was complete except for a few decimal places ! Newtonian mechanics explained macroscopic behavior of matter -- planetary motion, fluid flow, elasticity, etc. Thermodynamics had its first two laws and most of their consequences Basic statistical mechanics had been applied to chemical systems Light was explained as an electromagnetic wave
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This note was uploaded on 04/14/2011 for the course CHEM 2303 taught by Professor Moh during the Spring '11 term at University of Florida.

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lecture1 - 5.61 F all 2007 Lecture #1 page 1 Quantum...

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