Entropy definition 2 A quality is a property,if,and only if,its change in value between two states is independent of the process. Two cycles: Cycle #1:"1-A-2"(internal reversible) +"2-C-1"(internal reversible) (9)。+(2)= Cycle #2:"1-B-2"(internal reversible) +"2-C-1"(internal reversible) 1 （》+(9)。=f… (9)-() 上游究通大学 Apr/10,Mon,2017 7 SHANGHAI JLAO TONG UNIVERSITYApr/10, Mon, 2017 7 Entropy definition A quality is a property, if, and only if, its change in value between two states is independent of the process. Two cycles: Cycle #1: “1-A-2” (internal reversible) + “2-C-1” (internal reversible) Cycle #2: “1-B-2” (internal reversible) + “2-C-1” (internal reversible)