Question

4 A ga in a piston-cglinder oasemb ly undages the bollauering haaa processes in the qiwen seruence: Process i→ 2 : Isottun mat eaparainhen an initial shta 12%) (2 bar, 1. Process 2→3: An isoch,LC -in pressuAehm =1 bar = 2 bar Velume is cenatant Process 3-→ 4: An isobaric umpre 66 Lentnom, bart (a) Sketeh each process an a Pv diagram, indicoting with an assaur tha dieci the process. Hint: Check i the binal stata lh,%) is idential tone-6 the-etoaa already cn coutaed in. the () Cmpaita the umk done each path, in k mying caneu c Assuming the unle t the pishan- ylinden ausmbl and the pisten individual proces. okntior the sign. Find also thetstal Look done during au he proceb6es itselb t be made ham thermaly insulartną malkrial and nagligible heat las b radiation, tind the change inhal en egy, de,bn each. 5. Greider a gas, inside a pirm-ylinder assem ,expanding - ulinder a pand ing slously (see sketch叽next pge). The mas the piston is 20 ka A werthical shat mass 3 kg and cross sectiomal osua 4em & atmospheric pressuse is applied t the top d the shat. The local atmospheric pressuae ㎍ i bar and the acelo otion due to qYardya:9.8 mlga

Answer 1

A. 2.4m3. 3 166, 355 x103 J 166 355 KJ 2- 3 om system 166. 3 55 t. O @-240 = _ 73.64 kl

Process 2-3 P2 T3 3 Nour,