Final answer:
The motion of atoms and how gases can fill a container
Step-by-step explanation:
The motion of atoms can be described using the kinetic theory. According to this theory, atoms are in constant motion, vibrating and colliding with each other. The motion of atoms is random and can be affected by temperature.
A gas is able to fill a container of any size or shape because of its particles' high kinetic energy and the lack of strong attractive forces between particles. Even though the gas particles are constantly moving, they are far apart and do not stick together.
For example, if you have a balloon filled with gas and you release it into a room, the gas particles will spread out to fill the entire room because they are not bound or restricted by any physical barrier.
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