Problems and Solutions on Thermodynamics and Statistical Mechanics

Statiaticd PhyJics 235

where kg is Boltzmann’s constant. The stationary one-particle wavefunc-
tion is

where E = A2k2/2m. Thus we obtain

,a k.( r- r’) - hak’/8rr’mk~ T

k

p = 0 when the temperature T passes from T > T, to T < T,, hence

When r -+ 00, we have approximately

mkgT, 1

27rA2 r

w ___-.