🤓 Based on our data, we think this question is relevant for Professor Davis' class at UCF.

Recall that ** entropy** is the degree of chaos or disorder of a system and that it depends on the following:

**1. Phase:** The gas phase has the *highest entropy*, followed by the liquid, and then the solid phase with the *lowest entropy*.

Gas > Liquid > Solid

**2. Complexity:** *More elements* in the compound leads to *higher entropy*.

Ex. NO_{3}(g) [4 elements] has higher entropy than NO_{2}(g) [3 elements].

**3. Mass:** The *greater the mass*, then the *greater the entropy*.

Ex. Xe(g) [greater mass] has higher entropy than He(g).

For each of the following pairs, predict which substance possesses the larger entropy per mole.

Compare 1 mol of O_{2}(g) at 300 ^{o}C, 0.01 atm and 1 mol of O_{3}(g) at 300 ^{o}C, 0.01 atm.