Closed system entropy balance Clausius inequality: R 4(9 eycle 、 Only in process I 个 (9 int rev; Cycle:“1-I-2”+“2-R-1" 'Definition of△S s-=(9) Internally irreversible (9) +(S1-S2)=-0 S2-S1= Internally reversible entropy entropy entropy change transfer production 上游充通大 Wednesday,April 12,2017 6 SHANGHAI JLAO TONG UNIVERSITYWednesday, April 12, 2017 6 Closed system entropy balance Cycle: “1-I-2” + “2-R-1” Internally irreversible Internally reversible Clausius inequality: Only in process I Definition of ∆S