Arrange these gases in order of decreasing standard molar entropy:

Rank from largest to smallest. Kr, Cl2, SO3

The correct order of the gases listed above according to the order of decreasing standard molar entropy would be as follows:

SO3

Cl2

Kr

Krypton will have the least entropy since it is the most stable from the gases above. On the other hand, SO3 is the least stable and can participate in many chemical reactions.