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

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Page 41

pt from the area A of the wall, it will thus strike this area in the time t; but if it lies

further than a distance Út from the area A, it will not reach this area and thus will

not collide with it.f Hence the

...

pt from the area A of the wall, it will thus strike this area in the time t; but if it lies

further than a distance Út from the area A, it will not reach this area and thus will

not collide with it.f Hence the

**average**number of molecules which collide with the...

Page 42

the

|sions experienced per unit time . in one molecular collision by a unit area of the

wall Thus p > (2m5)70 = (2m)(#nt) Or p > \nmi;2. (19) As would be expected, the ...

the

**average**momentum the**average**number of collip = |2m5 gained by the wall ×|sions experienced per unit time . in one molecular collision by a unit area of the

wall Thus p > (2m5)70 = (2m)(#nt) Or p > \nmi;2. (19) As would be expected, the ...

Page 53

On the

that cos q = 0; also, since v1 and v2 have random directions, the cosine of the

angle between them is as often positive as negative so that VTV2 = 0. Show that (

ii) ...

On the

**average**, the azimuthal angle q is then as often positive as negative sothat cos q = 0; also, since v1 and v2 have random directions, the cosine of the

angle between them is as often positive as negative so that VTV2 = 0. Show that (

ii) ...

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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