The entropy of one mole of oxygen gas in a 0.5-L container is less than it would be in a 22.4-L container at the same temperature.

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Entropy is a measure of the disorder or randomness in a system. When the volume available to a gas increases (going from a 0.5-L container to a 22.4-L container), the gas molecules have more space to spread out and more possible positions and velocities, which increases the disorder or randomness of the system, thus increasing its entropy.

The Entropy of One Mole of Oxygen Gas in a 0.5-L