1. In general, what does the "heat capacity" measure?
In your own words, explain why the electronic contribution to the heat capacity of an electron gas depends linearly on the number of particles N and the temperature t, but depends inversely on the Fermi energy tF = eF.
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2. Estimate the density of neutrons in a neutron star, given the fact that TF = 3 x 1012 K (from Table 7.4 in the text).
Given this density, what would be the mass of 1 cc (cubic cm) of neutron star material?
3. The heat capacity of a metal at a constant volume can often be written as the sum of an electronic contribution and a lattice vibration contribution. Which of the following is true?
Check the correct answer: a) The lattice vibration contribution dominates at very low temperatures because it depends linearly on temperature.b) The electronic contribution dominates at very low temperatures because it depends linearly on temperature.c) The lattice vibration contribution dominates at very low temperatures because it depends on temperature raised to the third power.d) The electronic contribution dominates at very low temperatures because it depends on temperature raised to the third power. Below is a space for your thoughts, including general comments about today's assignment (what seemed impossible, what reading didn't make sense, what we should spend class time on, what was "cool", etc.): You may change your mind as often as you wish. When you are satisfied with your responses click the SUBMIT button.
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