Question
Which of the following combinations of entropy changes for aprocess are possible? A. Ssys < 0, Ssurr <0, Suniv > 0 B. Ssys < 0, Ssurr >0, Suniv < 0 C. Ssys < 0, Ssurr >0, Suniv > 0 Which of the following combinations of entropy changes for aprocess are possible? A. Ssys < 0, Ssurr <0, Suniv > 0 B. Ssys < 0, Ssurr >0, Suniv < 0 C. Ssys < 0, Ssurr >0, Suniv > 0
Explanation / Answer
delS_univ >= 0 So the choices are either A and C A is not possible, because delS_univ = delS_sys +delS_surr if delS_sys < 0 and delS_surr < 0, then delS_sys < 0. Sothis is false C is possible if the magnitude of delS_surr > magnitude ofdelS_sys. This ensures that delS_univ > 0 So the answer is C)