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Chapter 4 WORK AND HEAT

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Page 1: Chapter 4 WORK AND HEAT. 04-01 04-02 04-03 04-04

Chapter 4

WORK AND HEAT

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Polytropic Processes

PV n = constant

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HEAT

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Modes of Heat Transfer

• Conduction • Convection

• Radiation

dx

dTkAQ

TAhQ

4SATQ

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Heat and Work Comparisons

• Both are transient; systems possess neither; both can cross system boundary when the system undergoes a change of state

• Both are boundary phenomena representing energy crossing a boundary

• Both are path functions; inexact differentials

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