The particle model that represents the motion of gas particles according to the kinetic molecular theory is:
A. The particles in a gas are in constant, random motion.
Explanation:
1. According to the kinetic molecular theory, gas particles are in constant motion, moving freely and colliding with each other and the walls of their container.
2. This motion is random, meaning that the particles move in all directions with varying speeds.
3. The kinetic energy of gas particles increases with temperature, leading to faster motion and more collisions.
4. These collisions between gas particles and with the container walls result in pressure exerted by the gas.
5. Therefore, choice A best represents the motion of gas particles based on the principles of the kinetic molecular theory.
