The above image taken from the lesson videos illustrates the concept of entropy using a puzzle. In the lesson, you are asked to think of entropy statistically for any CLOSED system. The system shown in the images has THREE particles and you must figure out how many combinations there are of putting THREE balls into THREE boxes. We see that the total number of possibilities is TEN. The most likely possibility has 2 BALLS IN ONE BOX. The least likely possibility is to have 1 BALL IN EACH BOX. The second most likely possibility is to have 3 BALLS IN ONE BOX