The IDEAl solution for the week is based on, but different from, the back page of Quiz 13. Attached are the original quiz and the IDEAl solution assignment; your IDEAl solution answer can serve as corrections for the back page of the quiz, so you need not do both.<\/p>\n
I do want to emphasize on the IDEAl solutions that you need to justify your formulas, if even briefly. You are being asked to calculate twelve values (Q, W and change in S for each of the 4 processes of a Carnot cycle); many are zero and the rest use formulas you can find in the text. You should be able to justify in a few words why each is applicable. For instance, if a process were isochoric you should know right away that W<\/em>=0. Write something like, “W=0 because there is no volume change, and W=-integral (p dV)” Or if a process were isobaric, you should write, “W=-p(V_2-V1) (isobaric process)” rather than simply writing the formula alone. This is what I mean by justifying your use of a formula – by identifying in a few words the relevant physics of the situation. You have a bunch of formulas for work; you need to make it clear why you chose the one you did!<\/p>\n