Chemistry 152A Tuesday Quiz (@ end of period) Quiz # 3 (April 22, 2008) Value: 10 points; Time: 10 minutes Name ______KEY__________________ Section _________________ Compare with problems Z10.9, Z10.25 21lnrevextqVEqww PVw nRTSVT⎛⎞Δ=+=− Δ=−Δ=⎜⎟⎝⎠() ( )8.3273JRT KTCPVnRTmolK==+°−=For all of the short answer questions below, explainyour conclusion. Q) One mole of an ideal monatomic gas is contained in a cylinder with a movable piston. The temperature is kept constant at 100C. Weights are removed suddenly from the piston to cause the pressure to drop from 5 to 2Atm. The gas expands to come to equilibrium with the new external pressure. a)What is the work (in joules) to go between these two states. ()12122222 12211113735212398.3 373 132555extextTTKPPPAtmPVnRTPPwPVP VVPVPVnRTwkJ==⎧⎫⎧⎫⎧⎫⎪⎪=−Δ =−−
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