Which of the following results in a decrease in the entropy of the system? A. O2(g), 300 K ® O2(g), 400 K B. H2O(s), 0°C ® H2O(l), 0°C C. N2(g), 25°C ® N2(l), 25°C D. NH3(l), –34.5°C ® NH3(g), –34.5°C E. 2H2O2(g) ® 2H2O(g) + O2(g)