## Fundamentals of statistical and thermal physics |

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Page 227

mean energy E and

NrEr E = y e-pBr-*N, ' (6-9-5) V e-»B'-alf'Nr R = ^ y e-pE,-*N, r Here the sums are

over all possible states of the system A irrespective of its number of particles or of

...

mean energy E and

**mean number**N of particles, i.e., by the equations ^ e-HE,-*NrEr E = y e-pBr-*N, ' (6-9-5) V e-»B'-alf'Nr R = ^ y e-pE,-*N, r Here the sums are

over all possible states of the system A irrespective of its number of particles or of

...

Page 279

Hence the mean force on the end-wall can be obtained simply by multiplying [the

average momentum 2mv gained by the wall per collision] by [the

collisions (fyivA) per unit time with the end- wall]. The mean force per unit area, ...

Hence the mean force on the end-wall can be obtained simply by multiplying [the

average momentum 2mv gained by the wall per collision] by [the

**mean number**ofcollisions (fyivA) per unit time with the end- wall]. The mean force per unit area, ...

Page 483

The mean energy i of a phonon is of the order of kT, so that c = di/dT is of the

order k and temperature-independent. If T is sufficiently low, the mean ... Let m be

the

situation ...

The mean energy i of a phonon is of the order of kT, so that c = di/dT is of the

order k and temperature-independent. If T is sufficiently low, the mean ... Let m be

the

**mean number**of labeled molecules per unit volume. In an equilibriumsituation ...

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User Review - JJMAlmeida - LibraryThingNever mind that this book was published in the mid '60s (before I was even born); if you must choose one book to learn from, choose this one. It is so concise, so well thought out that I have yet to ... Read full review

### Contents

Introduction to statistical methods | 1 |

GENERAL DISCUSSION OF THE RANDOM WALK | 24 |

Statistical description of systems of particles | 47 |

Copyright | |

26 other sections not shown

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### Common terms and phrases

absolute temperature approximation assume atoms becomes Boltzmann equation calculate canonical distribution chemical potential classical coefficient collision condition Consider constant container corresponding curve denote density depends derivatives discussion electrons ensemble entropy equal equation equilibrium situation equipartition theorem evaluated example expression external parameters fluctuations frequency gases given heat capacity heat reservoir Hence ideal gas independent infinitesimal integral integrand interaction internal energy isolated system kinetic liquid macrostate magnetic field mass maximum mean energy mean number mean pressure mean value measured metal molar mole molecular momentum number of molecules number of particles obtains partition function perature phase space photons physical piston position probability problem quantity quantum quantum mechanics quasi-static radiation range relation result satisfy simply solid specific heat spin statistical mechanics Suppose theorem thermal contact thermally insulated Thermodynamics tion total energy total number unit volume variables velocity