PHYS 2101 Lecture : Lecture38
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Friday, april 27, 2012: hw 14 due tuesday night may 1, hw 15: optional hw (no points!!!!!!!) on chapters. 19 & 20: of ce hours mwf 12:30-1:30 (not wed. this week!, final exam: may 8 5:30-7:30pm. Chapter 19: gases pv = nrt or pv = nkt. The internal energy (change) of an ideal gas depends only on the temperature (change) Special case: isothermal ( t=0) in the case of an ideal gas. Speci c heat of an ideal gas: monatomic gas: constant volume heat capacity c. For a monatomic gas, the only important form of kinetic energy is translational kinetic energy. An atom has f=3 degrees of freedom: (motion in x,y, or z) cv = f. Idea: some of the total internal energy is rotational ke. More degrees of freedom: motion in x,y,z plus two ways to rotate: f=5: diatomic gas: c. Note: there are 3 independent ways to rotate, but.
