- #1
Sekonda
- 207
- 0
Hey,
My question is on Phonons, the Einstein & Debye models and the Dulong Petit Law. The question is displayed below:
I am told how to get to the heat capacity by using the logarithm of the partition function 'Z', and so I set about differentiating the logarithm of Z with respects to Beta twice.
However I'm unsure if I can manipulate the logarithm present in the integral (the one with the exponential functions with exponents BetaxE) to take on some other form which would allow the integration & differentiation to be simpler.
I'm not sure how I impose the normalizing integral condition and not sure how to use the normalizing integral with the integral displayed to the left of it. Also when to impose the 'large T' - I presume after differentiation and integrating?
Cheers guys!
S
My question is on Phonons, the Einstein & Debye models and the Dulong Petit Law. The question is displayed below:
I am told how to get to the heat capacity by using the logarithm of the partition function 'Z', and so I set about differentiating the logarithm of Z with respects to Beta twice.
However I'm unsure if I can manipulate the logarithm present in the integral (the one with the exponential functions with exponents BetaxE) to take on some other form which would allow the integration & differentiation to be simpler.
I'm not sure how I impose the normalizing integral condition and not sure how to use the normalizing integral with the integral displayed to the left of it. Also when to impose the 'large T' - I presume after differentiation and integrating?
Cheers guys!
S