Reversible polytropic process on p-v diagram Reversible adiabatic process pv"=const. T → dp+n v =0 p V n=0 Slope (n=0) 0 n=1 (n=1) 1n=0 n=k → =-n V v (n=K) n=±oo 00 上游充通大 March 23,2018 10 SHANGHAI JIAO TONG UNIVERSITYMarch 23, 2018 10 Reversible polytropic process on p-v diagram . n pv const  d d 0 p v n p v    n p p n v v            Slope         n v p n v p n n (  )  ( 1) ( 0) 0 Reversible adiabatic process