Step-by-step explanation:
It is known that gas particles move far apart from each other as molecules of a gas are held by weak Vander waal forces.
Therefore, they have high kinetic energy due to which they move rapidly from one place to another. As a result, they have variable shape and volume.
Whereas when molecules are attracted to each other by strong forces of attraction then they have fixed shape and volume.
Thus, we can conclude that the following results from gas particles not having a strong attraction to one another.