Final answer:
At 25°C and 1 atmosphere of pressure, SO2 shows the greatest deviation from ideal behavior, while O2 shows the least deviation.
Step-by-step explanation:
In this case, the gas with the greatest deviation from ideal behavior at 25°C and 1 atmosphere of pressure is SO2, and the gas with the least deviation is O2.
There are a few reasons for this. First, SO2 molecules are larger and have stronger intermolecular forces compared to the other gases, so they are more likely to deviate from the behavior of an ideal gas. Additionally, SO2 can undergo dissociation reactions, which can further contribute to its deviation from ideal behavior. On the other hand, O2 molecules are smaller and have weaker intermolecular forces, making them closer to the ideal gas behavior.
Overall, the ranking of deviation from greatest to least is: SO2 > CH4 > H2 > O2.