Work in polytropic process,reversible,ss,Ideal gas Ideal gas:pv=RT M m /int (polytropic,n≠1) rev nR /int n- (T-T) (ideal gas,n≠1) rev (ideal gas,n≠1) t=-(p)ln(p2/pi） i (polytropic,n 1) rev m int =-RTIn(p2/p1) (ideal gas,n 1) rev 上游充通大 Monday,April 24,2017 6 SHANGHAI JIAO TONG UNIVERSITYMonday, April 24, 2017 6 Work in polytropic process, reversible, ss, Ideal gas Ideal gas: pv=RT or