Using the Tds equations A pure,simple compressible system undergoing an internally reversible process Neglecting△PE,△KE 7=pdv Energy balance: (Q)t= rev: dU+(δw rev s=(9 int Tds D 1st Tds equation: Tds dU pdv 上游究通大学 April 20,2018 8 SHANGHAI JLAO TONG UNIVERSITYApril 20, 2018 8 Using the Tds equations A pure, simple compressible system undergoing an internally reversible process Neglecting ∆PE, ∆KE Energy balance: 1 st Tds equation: