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

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Page 53

(c)

average, the azimuthal angle q is then as often positive as negative so that cos q

= 0; also, since v1 and v2 have random directions, the cosine of the angle ...

(c)

**Consider**two atoms of this kind in a gas where many collisions occur. On theaverage, the azimuthal angle q is then as often positive as negative so that cos q

= 0; also, since v1 and v2 have random directions, the cosine of the angle ...

Page 58

ments about the tossing of a single coin, one

of a large number M of similar coins. The diagram indicates schematically the

appearance of this ensemble after each coin has been tossed. The symbol H ...

ments about the tossing of a single coin, one

**considers**an ensemble consistingof a large number M of similar coins. The diagram indicates schematically the

appearance of this ensemble after each coin has been tossed. The symbol H ...

Page 95

(An)2

moments which point in the up direction can then be written in the form n = u1 + ...

**Consider**any time t which is much larger than At. 2.14 Direct calculation of n and(An)2

**Consider**an ideal system of N identical spins #. The number n of magneticmoments which point in the up direction can then be written in the form n = u1 + ...

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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