11. A 50-g ice cube at 0℃ melts (reversibly) to water at 0℃. 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.

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