Lesson 36



Name:ETP Section:t3 Start Time:12:3:30 Instructor:pattersonet Course:421




1. In your own words, explain the difference between a first order and a second order transition. Give at least one example of each.

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2. The graph depicts an isotherm for a van der Waals gas. At volumes less than approximately V1, what phase is the gas in? How about at volumes greater than about V2?

Estimate which of the horizontal lines depicts the coexistence line. What defines where the coexistence line is, and why?

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3. The Law of Corresponding States has an important feature (at the heart of its usefulness/utility) in common with [Note: If you wish to "defend" your answer to the multiple choice question, feel free to add a comment below.]

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a) the Third Law of Thermodynamics.
b) the Law of Atmospheres.
c) the Law of Mass Action.
d) the Law of Diminishing Returns.

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