1. problem 1.31. I spent some time in class talking about being able to write down the equation for things like, "The thermal expansion coefficient also includes a quadratic term." This is the same type of thing you should be able to write down. And just for simplicity, let's have the following: T_i=295K, T_f=2,655K, and n=0.0413 moles.
2. problem 1.33. The "What does this process accomplish?" question is like I was saying in class about conversions between heat and work. By "accomplish" you need to mention if work was done, heat energy converted to work energy, or whatever. Note that there are 5 distinct things for you to answer here. With the first three, parts (a)-(c) you will simply write down the correct thing (+, - or 0) for each.
3. problem 1.36
4. Substitute the word "isothermally" for "adiabatically" in problem 1.36, and do parts (a) and (b) only.
5. Time to do some real-world modeling--time to think a bit here. In class I waved my hands and said that we would ignore any radiation caused by the difference in temperatures of the surface of the sea ice and the air above. Let's not do that now so we can add a layer of realism.
   Here's the situation you are to model with both conduction and radiation: Sea ice in a certain location is overlying an ocean whose temperature is 1.0^oC. The temperature of the surface of the ice is (-)18.0^oC and the ice is stable (not melting or freezing) at a thickness of 3.24m. The radiation efficiency is e=0.25, and the thermal conductivity of the sea ice is k=2.2W/m^.K.
   (a) Find the temperature of the air for this situation.
   (b) What happens to the thickness of the sea ice if the temperature of the air were to increase just a bit, with all other parameters remaining the same? Explain why this happens.

Note: It should go without saying, but I also assume that you're reading along in the text throughout this class. This is a very readable book, which is saying a quite a bit (most of the other thermo/stat mech books read like dictionaries...ugh). Even if you understand things so far by just looking at the equations in the book and at the class notes, then I still strongly urge you to read the book. Nothing like hearing/reading/seeing something over and over and over...to make for a deeper understanding.

That's all for homework #2.

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