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Exam (elaborations)

Statistical Mechanics

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1. Why is internal energy important to statistical mechanics? 2. What is the hypothesis in statistical mechanics in closed system? Internal energy gives the probable energy levels of particles/mole- cules in the system. Microstates of the same energy are equally likely. In other words, all micr...

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  • March 29, 2023
  • 13
  • 2022/2023
  • Exam (elaborations)
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Statistical Mechanics
Study online at
https://quizlet.com/_5bbtjx
1. Why is internal energy important to
Internal energy
statistical mechanics?
gives the probable
energy levels of
particles/mole- cules
2. What is the hypothesis in statistical mechanics in the system.
in closed system?
Microstates of the
same energy are
equally likely. In
other words, all
microstates in an
isolated system
have the same
proba- bility.

3. What is a 1-D phase state diagram? A phase state dia-
gram is the
momen- tum vs.
distance dia- gram
used to describe
microstates.

4. What is the basic assumption of statistical me- The basic
chanics? assumption is that
we are work- ing
with N particles in
closed systems.
5. What is the probability distribution function of
a microstate? f(x,y,z;p1x,
p1y,p1z)dxdydzdpxd
py- dpz

6. What is a microstate of a system specified by? A particular
microstate
is specified by 6N
vari- ables of
postiion and
momentum.
r1,r2,...,rN ;
1

, Statistical Mechanics
Study online at
https://quizlet.com/_5bbtjx p1,p2,...,pN

r1 = (x1, y1, z1)
and p = (p1x,
p1y,p1z)

7. f(r,p)drdp




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