50 kg of a certain gas is contained within a piston-cylinder assembly. the gas undergoes a processwhich the pressure volume relationship is PV = constant. (n=1.5) the given conditions as follows : p1= 6 bars, v1=0.2 cubic meters ,and v2= 0.4 cubic meters. the change of internal energy= 10.5 KJ/Kg. [ Hints: KE=PE=0, 1bar=100,000 N/sq.m, 1KJ=1000N.m, 1N= 1Kg.m/sq.sec, W = (p1v1)ln(v2/v1), or W= (p2v2-p1v1)/(1-n) ]
(a). find P2 in bars
(b). find the work in KJ for n=1.5
(c). find the net heat transfer for the process in KJ