## Statistical Physics, Volume 5Elementary college physics course for students majoring in science and engineering. |

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Page 200

5.3 Work,

introduced in Sec. 3.7. The discussion there was summarized by the basic

relation (3.53), AE = W + Q, (13) which connects the increase in the mean energy

E of any ...

5.3 Work,

**Internal Energy**, and Heat The concepts of heat and work wereintroduced in Sec. 3.7. The discussion there was summarized by the basic

relation (3.53), AE = W + Q, (13) which connects the increase in the mean energy

E of any ...

Page 203

We recall from mechanics that the energy of a system (in particular, its potential

energy) is always undefined to within an arbitrary constant. The same remark

applies, of course, to the mean

value ...

We recall from mechanics that the energy of a system (in particular, its potential

energy) is always undefined to within an arbitrary constant. The same remark

applies, of course, to the mean

**internal energy**E of a macroscopic system. Thevalue ...

Page 302

Thus there have been some very ingenious people who invented the specific

steam engines, gasoline engines, or Diesel engines useful for converting

...

Thus there have been some very ingenious people who invented the specific

steam engines, gasoline engines, or Diesel engines useful for converting

**internal****energy**into work. Similarly, biological evolution over billions of years has resulted...

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### Contents

Characteristic Features of Macroscopic Systems | 1 |

A I | 2 |

I | 6 |

Copyright | |

26 other sections not shown

### Common terms and phrases

absolute temperature absorbed accessible approximation assume atoms average Avogadro's calculate classical collision Consider constant container corresponding cules denote discussion distribution ensemble entropy equal equilibrium situation equipartition theorem example exchange energy expression external parameters fluctuations function given heat capacity heat Q heat reservoir Hence ideal gas initial internal energy interval isolated system kinetic energy large number left half liquid ln Q macroscopic parameters macroscopic system macrostate magnetic field magnetic moment magnitude mass mean energy mean number mean pressure mean value measured mechanics mole molecular momentum number of molecules occur oscillator particle particular partition phase space piston position possible values Prob quantity quantum numbers quasi-static random relation result simply solid specific heat spin system statistical statistical ensemble statistically independent Suppose thermal contact thermal interaction thermally insulated thermometer tion total energy total magnetic total number unit volume velocity