Prob0208s

# Prob0208s - PHYS1417 Basic Physics Problem set 2 Due Date...

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1 PHYS1417 Basic Physics Problem set 2 Due Date: 5:00 p.m., May 4, 2009 1. A thermodynamic system is taken from an initial state A to another state B and back again to A , via state C , as shown by path ABCA in the p-V diagram in figure (a). Complete the table in figure (b) by filling in either + or – for the sign of each thermodynamic quantity associated with each process. You might put in a “0”, if you think that the quantity remains unchanged. (b) Calculate the numerical value of the work done by the system for the complete cycle ABCA . 2. One mole of a monatomic ideal gas is taken through the reversible cycle shown in figure. Process bc is an adiabatic expansion, with p b = 10.0 atm and V b = 1.00 × 10 3 m 3 . Find (a) the pressure p a , (b) the heat added to the gas in process ab , (c) the heat leaving the gas in process ca , (d) the net work done by the gas, and (e) the efficiency of the cycle. [Hint: For adiabatic process: pV γ = constant, where is the ratio C P : C V .] End of p a

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2 3. The following figure shows the cross section of a wall made of white pine of thickness L a and brick of thickness
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Prob0208s - PHYS1417 Basic Physics Problem set 2 Due Date...

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