mid_s09

mid_s09 - Problem P oz'nts 1 2 TotttL 100 lv[ar. Pts, 47...

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Problem 1 2 TotttL P oz'nts lv[ar. Pts, 47 100 MAE 110'{ - Summer 2009 Midterm Exam Name (Print Clearly) I.D. Directions: Read each problem over carefully before starting. Be sr-rle to define system. Begin analysi5 (in "Analysis" section) with general form of basic equations (see attached refcrence sheet). SHO\tr/ ALL WORK. Solution and ansu,ers must be clear and explicit. 1. (47pts) A frictiorrlcss veltical piston-cr'lirrder devicc. wlrose pistorr is resting olr a sct of stops, conrains a lnass. m. of air initially al prcssurc P1 arrd temperatlrre fl . The rnass of rhc piston i: suc]r t]rat a pressure of P2 of the air (where Pz > Pt) is reqr-rired to move it. Heat is nor.v transferred to the air uritil irc ,nl,rmo lrinlpq A.ssttme a slow quasiequillibriurrr proccss u'itlr rregligilrle kirretic arrd poterrtial t nerg;' effects. Assutttc idcal gas uith knowrr arrd cc,,rrstar)l rp. (,. . and gas corrstarrt R. a.
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mid_s09 - Problem P oz'nts 1 2 TotttL 100 lv[ar. Pts, 47...

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