Isentropic process for Ideal gas Ideal gas:reference state:s=0 at(T=0 K and p=1 atm) s(T2:P2)-s(Ti,P) =s(T2)-s(T)-RIn2 P2 +Isentropic:s(T2,P2)=s(T1,p) 0 P2 0=s(T2)-s(T)-RIn 内-四，) s(T2)=s(T)+RIn P2 Pi S R (T1,T2z,p1)今P2 上游通大学 April 28,2019 3 SHANGHAI JIAO TONG UNIVERSITYApril 28, 2019 3 Isentropic process for Ideal gas Ideal gas: reference state: s =0 at (T=0 K and p=1 atm) +Isentropic: (T1 , T2 , p1 )  p2 s