Which of the following systems reflects a decrease in entropy?

A. burning match

B. freezing water

C. evaporating alcohol

D. breaking glass

**Thank you!!

Question

Which of the following systems reflects a decrease in entropy?

A.       burning match

B.       freezing water

C.       evaporating alcohol

D.       breaking glass

**Thank you!!

anonymous · Answer

would it be C evaporating alcohol?

michele_laino · Answer

no, since after the evaporation, alcohol has more energy than before the same evaporation

anonymous · Answer

ohhh okay! not sure which it would be then :(

jfraser · Answer

which change gets $less$ random or chaotic?

anonymous · Answer

ohhh freezing water?

jfraser · Answer

GJ

michele_laino · Answer

we have to search for a transformation in which the amount Q of heat transferred is negative

anonymous · Answer

ooh yay!! thank you!! :D

michele_laino · Answer

please we have to say this:
if we consider as thermodynamic system the water only, the answer is C. Nevertheless, we have to keep in mind that in all natural phenomena entropy can only increase

anonymous · Answer

ohhh but because that is not the case, and that it has to increase, it must be freezing water? :O

michele_laino · Answer

yes! the answer of @JFraser  is correct!
we have to be careful what we mean with thermodinamic system

anonymous · Answer

ahh okie! thank you both!! :D @Michele_Laino @JFraser :)

michele_laino · Answer

thank you!! :)