* Entropy is a measure of disorder or randomness within a system.
* Generally, entropy increases with:
* Temperature: Higher temperatures mean more molecular motion and therefore more disorder.
* Phase: Gases have the highest entropy, followed by liquids, then solids.
* Number of particles: More particles means more ways to arrange them, increasing disorder.
Let's analyze each substance:
* Bromine vapor: Bromine gas is at the highest temperature and in the gaseous state, so it has the highest entropy.
* Liquid bromine: Liquid bromine is at a lower temperature than the vapor and is in a more ordered state, making it have less entropy than the vapor.
* Iodine: Solid iodine is at the lowest temperature and in the most ordered state (solid), so it has the lowest entropy.
Therefore, the order of increasing entropy is:
Solid iodine < Liquid bromine < Bromine vapor
