Question

question 1-8
which statement describes the movement of particles in a gas?
○ not moving at all
○ move slowly passing each other
○ move very quickly and collide with each other
○ vibrate side to side and are tightly packed together

Explanation:

To determine the movement of particles in a gas, we recall the kinetic theory of gases. Gas particles have high kinetic energy, move very quickly, and frequently collide with each other and the container walls. Let's analyze the options:

• "not moving at all" is incorrect as gas particles are in constant motion.
• "move slowly passing each other" is incorrect; liquid particles move slowly past each other, while gas particles move faster.
• "vibrate side to side and are tightly packed together" describes solid particles, not gas.
• "move very quickly and collide with each other" matches the behavior of gas particles due to their high energy and large intermolecular spaces allowing rapid motion and collisions.

Answer:

The option: move very quickly and collide with each other