PHY 3513 Fall 1999 – Homework 10 Due at the start of class on Wednesday, December 8. Answer all questions. To obtain full credit, you must explain your reasoning and show all working. Please write neatly and include your name on the front page of your answers. 1. Callen Problem 5.3–2. Addition: After you have obtained an expression for the Helmholtz free energy, find the equations of state by partial differentiation of the fundamental equation. 2. Callen Problem 5.3–3. 3. Callen Problem 6.2–1. 4. Callen Problem 6.3–2.