CH302 Spring 2009 Worksheet 2: Thermodynamics and Phase Diagrams - Prof. David A. Laude, Exams of Chemistry

Download CH302 Spring 2009 Worksheet 2: Thermodynamics and Phase Diagrams - Prof. David A. Laude and more Exams Chemistry in PDF only on Docsity! CH302 Spring 2009 Worksheet 2. For Questions 1-4, use the Phase diagram below. 1. What is a good general definition of the term triple point? How many triple points are found int he phase diagram for quartz shown above? 2. How many phase boundaries are there in the phase diagram for quartz shown above? (Hint: two of them are found on the same line.) 3. Starting at 0.1 GPa and 200 °C and isobarically raising the temperature to 2000 °C, how many phase transitions would occur? What would the final phase be? 4. What is a critical point? How many are shown in the phase diagram above? 5. Write as many assumptions involved in the derivation of the Clausius-Clapeyron equation as you can. 6. Starting from the general Clausius-Clapeyron equation and performing algebraic rearrangements, express P2 in terms of the other variables. 7. Starting from the general Clausius-Clapeyron equation and performing algebraic rearrangements, express T2 in terms of the other variables. 8. When ranking different species in terms of their vapor pressures at a given temperature, what property has the most predictive value?