Chapter 18 Lecture 2

Chapter 18 Lecture 2 - -1 0.5 E(volts-High potential Low...

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Chapter 18 Lecture 2 Gravitational analogy: g F = mg w = mgh Potential energy g – gravitational field strength w – work or change in potential energy h – distance moved F – gravitational force In electrical systems analogies are: Mass - Charge g - Force = q€
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+ + + + + + + + + + + - - - - - - - - - - 1 0 0.5 E (volts) + High potential Low potential W = qΔE F = q Work is need to move charge from one location to another. W = Fd = q€d E = w/q = €d ΔE = €(d1 ─ d2) Or W = qΔE Volts is about location
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Unformatted text preview: + + + + + + +----------1 0.5 E (volts)-High potential Low potential €- W = qΔE No such thing as anti matter so …. . electrons will seek the more positive potential. In doing so they lower their energy. Zn Cu 2+ Energy and Opportunity Energy: “Holes” in copper are more at a more positive potential than the electrons in zinc Opportunity: Must have electrons available and a place for them to go. Zn Cu Zn 2+ Cu Zn 2+ Cu 2+...
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This note was uploaded on 04/16/2008 for the course CHEM 1123 taught by Professor Paul during the Fall '06 term at Arkansas.

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Chapter 18 Lecture 2 - -1 0.5 E(volts-High potential Low...

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