PHY 206 Midterm: PHY 207 UMiami spring11 2s
Document Summary
Speed of propagation of a wave on a string: Q = n cv t pv = const dw = p dv p v = n r t e = ds = A quantity of n moles of a diatomic ideal gas is initially enclosed in a volume vo and its pressure is po. The gas expands adiabatically to three times its initial volume, it is then compressed isothermally to the original volume, and finally it is brought back to its initial state at constant volume. [note: write the results only in terms of po, vo, and n] One mole of an ideal gas at temperature to fills one third of a cylinder. The gas is kept in there through a thin partition. The cylinder is also provided with a piston and is in thermal contact with a heat reservoir much bigger than the cylinder (see figure): the thin partition is broken and the gas expands freely occupying the whole volume.
