PHYS427_Fa08_HE01 A_ClosedBook - Physics 427 – Thermal...

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Unformatted text preview: Physics 427 – Thermal Physics October 22, 2008 1st Midterm Exam ‐‐‐ Part A: Questions ‐‐‐ CLOSED BOOK (Use the 4‐page exam book. Each question is worth 2 points) 1. Define extensive and intensive variables, and give one example of each. 2. State the Second Law of Thermodynamics. There are many equivalent statements of the Second Law, and you may use any one of them. 3. What is the fundamental assumption of thermal physics? 4. In words, define multiplicity, and state the importance of this concept to thermal physics. 5. You are at a dinner party. Music major explains, in detail and with clarity, how to design chord progressions. You decide to explain, in detail and with clarity, what Chemical Potential is. What do you say? (e.g., Describe the concept of Chemical Potential to a non‐scientist). 6. State the equipartition theorem. Under what conditions is this useful (i.e., what are the assumptions made in the derivation.)? 7. State the Thermodynamic identity for the Canonical Ensemble the Grand Canonical Ensemble. 8. Write out the Boltzmann factor and the Gibbs factor. What is the physical interpretation, i.e., what does each describe? Please turn in your answers (suggest ~20 minutes), and then PICK UP THE OPEN‐BOOK PART OF THE EXAM ...
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This note was uploaded on 12/06/2009 for the course PHYS 427 taught by Professor Flynn during the Fall '08 term at University of Illinois, Urbana Champaign.

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