Ch1_What_the_ancients_knew

Ch1_What_the_ancients_knew - CONTENTS Part I Mysteries,...

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CONTENTS Ch.1 What the Ancients Knew Ch.2 What’s Inside Cells Part I Mysteries, Metaphors, Models
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Part II Diffusion, Dissipation, Drive Ch.3 The Molecular Dance Ch.4 Random Walks, Friction, and Diffusion Ch.5 Life in the Slow Lane: Low Re Ch.6 Entropy, Temperature, and Free Energy Ch.7 Entropic Forces at Work Ch.8 Chemical Forces and Self-Assembly
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Part III Molecules, Machines, Mechanisms Ch. 9 Cooperative Transitions in Macromolecules Ch.10 Enzymes and Molecular Machines Ch.11 Machines in Membranes Ch.12 Nerve Impulses Appendix A. Global List of Symbols and Units Appendix B. Numerical Values -useful!
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Ch.1 What the Ancients Knew ¾ Biological Question : How can living organisms be so highly ordered? ¾ Physical Idea : The flow of energy can leave behind increased order.
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Roadmap 1.1 Heat 1.2 How life generates order 1.3 Excursion: Commercials, philosophy, pragmatics 1.4 How to do better on exams (and discover new physical laws) 1.5 Other key ideas from physics and chemisty
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1.1 HEAT 1.1.1 Heat is a form of energy 2 1 2 0 E mgz mv dE dt =+ = Conservation of Mechanical Energy mud Friction converts mechanical energy into thermal energy : Energy Conservation
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Energy Loss Not Energy Disappearance But One-way conversion to Heat What is an independent, measurable quantity describing the “quality” or “usefulness” of energy?
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1.1.2 Just a little history ¾ Benjamin Franklin: “Heat is an invisible fluid.” Wrong ! ¾ Benjamin Thompson: “Heat production from friction ceases the moment we stop doing mechanical work on the system.” ¾ James Joule & Hermann von Helmholtz: Heat ? Heat produced by friction Mechanical Work done against that friction ± 0.24 cal / J
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First Law of Thermodynamics Cyclic Process : Net of Mechanical Work = Net of Heat Energy conservation when every form of energy is properly included for every thermal/ mechanical/chemical process
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1.1.3 Preview : The concept of free energy About the interplay of Order and Energy : Thermal Energy is the
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This note was uploaded on 07/08/2009 for the course KIM 0150-5 taught by Professor Dong during the Spring '09 term at Ewha Womans University.

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Ch1_What_the_ancients_knew - CONTENTS Part I Mysteries,...

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