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)

Question

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)

anonymous · Answer

C6H6 (l) yields C6H6 (s). when mole of gases in products is more than mole of gases in reactants enthropy increase.when a liquid transform to a solid enthropy decrease because in liquid form particle are more free than solid form. it's not a good way but it is helpful.

anonymous · Answer

Ok I kinda understand thank you