Summary:duty of the second law 1.predicting the direction of processes. 2.establishing conditions for equilibrium. 0 3.determining the best theoretical performance of cycles, engines,and other devices. 4.evaluating quantitatively the factors that preclude the attainment of the best theoretical performance level. >how to briefly and accurately state the 2nd law? 上游通大学 April 8,2018 10 HANGHAI JIAO TONG UNIVERSITYApril 8, 2018 10 Summary: duty of the second law 1. predicting the direction of processes. 2. establishing conditions for equilibrium. 3. determining the best theoretical performance of cycles, engines, and other devices. 4. evaluating quantitatively the factors that preclude the attainment of the best theoretical performance level.  how to briefly and accurately state the 2nd law?