11. A 50-g ice cube at 0°C melts (reversibly) to water at 0°C. What is the change in entropy of the ice and the universe respectively? (A) 61.2 J/K and -61.2 J/K (B) 61.2 J/K, 0 J/K (C) -61.2 J/K, 0 J/K (D) -61.2 J/K, 61.2 J/K

3. The moment of inertia of a solid sphere is 2MR²/5, hollow sphere is 2MR²/3, solid cylinder is MR²/2, and hollow cylinder is MR². All of the same mass M and the same outer radius R. If these four objects are released from rest at the top of an incline and start rolling without sliding. Which one will the last arrive at the bottom? (A) solid sphere (B) hollow sphere (C) solid cylinder (D) hollow cylinder

11. A 50-g ice cube at 0°C melts (reversibly) to water at 0°C. What is the change in entropy of the ice and the universe respectively?
(A) 61.2 J/K and -61.2 J/K
(B) 61.2 J/K, 0 J/K
(C) -61.2 J/K, 0 J/K
(D) -61.2 J/K, 61.2 J/K

相關試題

相關試卷