Which of the following systems has the highest entropy? . . a cup of ice at 0 degrees c. a cup of water at 50 degrees c. a cup of water at 0 degrees c. a cup of ice at −15 degrees c. . which of the following systems has the lowest entropy? . . sugar crystals in a 95°c cup of coffee. sugar crystals in a 27°c cup of coffee. sugar crystals in a 53°c cup of coffee. sugar crystals in a 15°c cup of coffee.