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A gas in a cylinder piston system occupies V, - 15 mºat P. = 220 kPa and T, -20°C. Then, the gas undergoes a polytropic compr

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PV=MRTI sm3 Given daty V, = 1.5m P₂ = 220 kpg Ti= 293k ma Pivi RTI T2=573k m= 220x1.5 0.3 x 293 m=3.75kg و سرل R = 0.3kJ Kg.kAS = 3.75 =3.75 0.536 5 ( 0.536 – 0.3 ml Pro os= 2.012 - 1.125 in ) -1.7526 = 2.012 – 1.125 m 2 220 en IP2 3.7646 1.125 3.34Pivinac n Pitam = P2 Tot ( 7 ) 220 573 Pi P2 572 = 6208.4 293 n -4.98 c 1_nna) - n 4.98 1-t=0.2 n=1.25 Work Transfer= MR (Ti-T2) n-l W = 2.75*0.3(293-5 -533) 1.25-1 W 1260 K Work Transfer is 1260k] An

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