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DLM16 - Physics 7A DLM 16 Overview CG 4.1 The Intro Model...

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Physics 7A DLM 16 Overview CG 4.1 The Intro Model of Thermodynamics Act-4.1.5 Follow-up of FNTs (~45 min) Deepen understanding of how the Thermodynamic Model provides an explanation for the observation that C p is always significantly larger than C v for gases, but is only slight larger for most solids and liquids. Practice using multiple models together to form a logical scientific argument. CG 4.2 Working with the Thermodynamic Model: State Functions Act-4.2.2 Follow-up of CG 4.2 FNTs (~45 min) Practice working with state diagrams Practice using multiple models together along with state diagrams to answer questions and get numerical values Practice determining work and heat (using information from other models as appropriate) from PV diagrams CG 4.3 Relation of Entropy to Microstates Act-4.3.1 States, Microstates, and Probabilities (~30 min) Introduction to the concepts of state and microstate of a system composed of a number of independent “entities” Introduction to the concept of the probability of being in a particular state being equal to the ratio of the number of microstates associated with that state to the total number of microstates Textbook Reading Assignment Continue making sense of Chapter 4 and the three associated models.

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Physics 7A Exit Handout DLM 16 FNTs 4.3-1) More practice with four coins a) Make a neat table that lists all the states and the corresponding microstates for the four coins in Activity 4.3.1 B. The first two rows are shown below. It is easier if you are systematic when listing the microstates. You should have these from doing the activity. STATE MICROSTATES 0 H T T T T 1 H H T T T T H T T T T H T T T T H b) Count the total number of microstates in your table. What do you get? c) Convince yourself that you can get the number of different possibilities, which is the total number of microstates, by making the following argument as you think about flipping each coin in turn: “When I flip the first coin, there are two possibilities.
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