Answer:
Decreases.
Explanation:
The average speed of the Xe atoms in the container is decreases as the volume of the container is reduced at a constant temperature because there is little space is now available for the movement of Xe atoms so their speed is decreases while on the other hand, if there is more space available for the atoms and they have kinetic energy so their average speed is increases so we can say that volume has a direct effect on the average speed of atoms..
