Which of the following changes has a decrease in entropy? 2LiClO3 (s) yields 3O2 (g) + 2LiCl (s) N2O4 (g) yields 2NO2 (g) C6H6 (l) yields C6H6 (s) C2H5OH (l) + 3O2 (g) yields 2CO2 (g) + 3 H2O (g)